{"title":"FreshWater Hot Tub Chemicals","description":"\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003eOptimize your spa experience with FreshWater hot tub chemicals and accessories. Ensure clean, balanced water for relaxation and enjoyment, effortlessly.\u003c\/p\u003e\n\u003c!----\u003e","products":[{"product_id":"freshwater-clean-screen-pre-filter","title":"FreshWater Clean Screen Pre-Filter","description":"\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eFreshWater Clean Screen Pre-Filter\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eattaches to your garden hose and filters out organic contaminants, metals, and sediment\u003cspan\u003e \u003c\/span\u003e\u003cem\u003ebefore\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003ewater enters your spa. Best maintenance choice you can make for water quality is one most owners overlook entirely: starting with the cleanest possible fill water means less work managing chemistry afterward.\u003c\/p\u003e\n\u003cp\u003eFill water — whether from municipal supplies or private wells — almost never comes out of the hose perfectly clean. Municipal water contains chlorine residuals, occasionally trace iron and copper from aging pipes, and sometimes mineral debris stirred up from the system. Well water frequently carries iron, manganese, sulfur, sand particles, tannins from organic matter in the aquifer, and other contaminants that vary wildly by region.\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eEvery contaminant you put into your spa is one you'll have to manage with chemistry later.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe Clean Screen pre-filter is a single hardware purchase that pays dividends across many fills. One unit lasts approximately\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e5,000 gallons\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e— that's around 10 complete fills of a typical 500-gallon spa, or 5–6 fills of a 1,000-gallon swim spa. Spread the cost across that many water changes and the math is favorable for any owner, but it becomes nearly required for two situations:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWell-water fills\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e— variable mineral and metal content makes pre-filtering nearly essential\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSalt-system spas\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e— the year-long fill cycle gives any contamination a full year to cause problems\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv class=\"lti-pro-tip\"\u003e\n\u003cstrong\u003ePro Tip:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe Clean Screen filters metals (iron, copper, manganese), organic contaminants, sand, debris, and tannins. It does\u003cspan\u003e \u003c\/span\u003e\u003cem\u003enot\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003efilter phosphates. If you suspect high phosphate fill water — common with municipal supplies that use phosphate-based corrosion inhibitors — you'll need to test with FreshWater Phosphate Test Strips and use a phosphate remover separately. The two issues are addressed with different products.\u003c\/div\u003e\n\u003cdiv class=\"lti-pro-tip\"\u003e\n\u003cdiv class=\"lti-pro-tip\"\u003e\n\u003cstrong\u003e\u003c\/strong\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"lti-pro-tip\"\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cspan aria-label=\"®\" role=\"img\"\u003eFreshWater®\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e","brand":"FreshWater","offers":[{"title":"Default Title","offer_id":4572731768869,"sku":"80102","price":89.59,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2507\/5288\/files\/FreshWater_Clean_Screen_Pre-Filter_Front.jpg?v=1778094571"},{"product_id":"freshwater-ace-cell-cleaner","title":"FreshWater ACE Cell Cleaner","description":"\u003cp\u003e\u003cstrong\u003eFreshWater ACE Cell Cleaner\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis the dedicated descaling solution for the Hot Spring ACE Salt Water System cell — the durable cell used in Hot Spring Highlife, Highlife NXT, and Limelight Collection spas equipped with the ACE system (originally available on models manufactured 2004 through 2021). Calcium scale gradually builds up on the cell's titanium electrodes over time, reducing its ability to generate chlorine and shortening its working life. A quick soak in this cleaner removes the scale and restores the cell to full efficiency.\u003c\/p\u003e\n\u003cp\u003eUnlike the FreshWater Salt System cartridge (which is disposable and replaced every four months), the ACE cell is a\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003edurable, long-life component\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003edesigned to be cleaned periodically and used for years. The single most damaging thing for an ACE cell is calcium scale buildup on the electrodes — the same mineral deposit that scales heaters and other spa equipment. Regular cleaning is the difference between a cell that lasts many years and one that fails prematurely from scale.\u003c\/p\u003e\n\u003cp\u003eThis bottle does double duty: it contains exactly the right amount of pre-measured cleaning solution for one complete cell cleaning,\u003cspan\u003e \u003c\/span\u003e\u003cem\u003eand\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003eit's sized so you can place the ACE cell directly into the bottle to soak. No measuring, no separate container, no math. Open, drop in the cell, wait, remove, done.\u003c\/p\u003e\n\u003cdiv class=\"lti-pro-tip\"\u003e\n\u003cstrong\u003ePro Tip:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThis product is specifically for the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eHot Spring ACE cell\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e— NOT for the FreshWater Salt System cartridge. If your spa uses the FreshWater Salt System (current Hot Spring and Caldera models from 2022 onward), your cartridge is the consumable type that gets replaced every 4 months, not cleaned. Cell Cleaner is for the older ACE system. Not sure which system you have? Check your owner manual or call us with your spa model and year — we can confirm in under a minute.\u003c\/div\u003e\n\u003cdiv class=\"lti-pro-tip\"\u003e\n\u003cdiv class=\"lti-pro-tip\"\u003e\n\u003cstrong\u003e\u003c\/strong\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"lti-pro-tip\"\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cspan aria-label=\"®\" role=\"img\"\u003eFreshWater®\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e","brand":"FreshWater","offers":[{"title":"Default Title","offer_id":4572863561765,"sku":"77139","price":11.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2507\/5288\/files\/FreshWater_Ace_Cell_Cleaner.jpg?v=1778266020"},{"product_id":"freshwater-ag-silver-ion-sanitizer","title":"FreshWater Ag+ Silver Ion Sanitizer | Hot Tub","description":"\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eFreshWater Ag+ Silver Ion Sanitizer\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis a supplemental sanitizing cartridge that slots into your spa's filter standpipe and releases a steady stream of positively-charged silver ions into the water for approximately four months. Those silver ions inhibit bacterial growth continuously, meaning you can run your spa on a much lower chlorine residual than a chlorine-only spa would require.\u003c\/p\u003e\n\u003cp\u003eThis is one of the most popular FreshWater products because it solves a real comfort problem: high chlorine smell. Owners running a chlorine-only system often complain about strong sanitizer smell, dry skin, irritated eyes, and faded swimsuits — all caused by maintaining enough chlorine to handle bacteria\u003cspan\u003e \u003c\/span\u003e\u003cem\u003eand\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003eoxidize organic contaminants single-handedly. Add an Ag+ cartridge, and the silver ions handle most of the bacterial inhibition. You still need chlorine or MPS for oxidation (more on that below), but you need a lot less of it.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eImportant to understand before you buy:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eAg+ is a\u003cspan\u003e \u003c\/span\u003e\u003cem\u003esupplemental\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003esanitizer, not a complete replacement for chlorine. Silver ions inhibit bacteria but do not oxidize body oils, sunscreen, sweat, or other organic load brought in by bathers. You still need to add a small amount of dichlor or MPS (non-chlorine shock) regularly to oxidize organics and keep water clear. Owners who skip this step end up with cloudy water and assume the cartridge is defective — it isn't. The two-part approach is how the system is designed to work.\u003c\/p\u003e\n\u003cdiv class=\"lti-pro-tip\"\u003e\n\u003cstrong\u003ePro Tip:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThink of Ag+ like the long-haul shift of your sanitizer team — it handles the steady, continuous bacterial inhibition. The chlorine or MPS you add periodically is the cleanup crew — it handles the contamination bathers bring in. You need both, but with Ag+ in the filter, you need much less of the chlorine.\u003c\/div\u003e\n\u003cdiv class=\"lti-pro-tip\"\u003e\n\u003cstrong\u003e\u003c\/strong\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"lti-pro-tip\"\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv class=\"lti-pro-tip\"\u003e\n\u003cp\u003e\u003cspan role=\"img\" aria-label=\"®\"\u003eFreshWater®\u003c\/span\u003e\u003cspan role=\"img\" aria-label=\"®\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e","brand":"FreshWater","offers":[{"title":"Default Title","offer_id":4575778177061,"sku":"80010","price":34.39,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2507\/5288\/files\/FreshWater_Ag_Silver_Ion_Sanitizer.jpg?v=1778192806"},{"product_id":"freshwater-salt-test-strips","title":"FreshWater Salt Test Strips | Salt Level Testing","description":"\u003cp\u003e\u003cstrong\u003eFreshWater Salt Test Strips\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eare the dedicated dip test for measuring salt concentration in spas equipped with the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eFreshWater Salt System\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eor the older\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eHot Spring ACE Salt Water Sanitizing System\u003c\/strong\u003e. A single 10-second dip tells you whether your spa is in the proper salt range — usually the single most important reading on a saltwater spa.\u003c\/p\u003e\n\u003cp\u003eSalt is the fuel your spa's titanium cartridge uses to generate chlorine. Too little salt, and the cartridge can't produce enough chlorine to sanitize the water — even if the cartridge itself is brand new. Too much salt, and you're forcing the system to work harder than needed, accelerating cartridge wear and risking corrosion on metal components. The target range is\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1,500–2,000 ppm\u003c\/strong\u003e, with an ideal target of\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e1,750 ppm\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eRegular salt testing matters more than most owners realize. Salt isn't consumed by the chlorine-generation process — but it leaves the spa anyway through splash-out, water top-offs, and drag-out on swimsuits and towels. The longer you go without testing, the more likely your salt level has drifted out of range without any visible sign in the water.\u003c\/p\u003e\n\u003cp\u003eThis bottle contains\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e25 individually accessed strips\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003esealed in a moisture-resistant flip-top container — about six months of weekly testing, or three months if you test before every soak.\u003c\/p\u003e\n\u003cdiv class=\"lti-pro-tip\"\u003e\n\u003cstrong\u003ePro Tip:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eNote that FreshWater 5-Way Test Strips do\u003cspan\u003e \u003c\/span\u003e\u003cem\u003enot\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003emeasure salt level — they only test chlorine, bromine, pH, alkalinity, and hardness. Salt testing requires this dedicated salt strip. Most salt-system owners keep both bottles on hand.\u003cstrong\u003e\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"lti-pro-tip\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv class=\"lti-pro-tip\"\u003e\n\u003cdiv class=\"lti-pro-tip\"\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cspan role=\"img\" aria-label=\"®\"\u003eFreshWater®\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e","brand":"FreshWater","offers":[{"title":"Default Title","offer_id":4575805636645,"sku":"80092","price":8.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2507\/5288\/files\/FreshWater_Salt_Test_Strips.jpg?v=1778189537"},{"product_id":"freshwater-spa-salt-10-lbs","title":"FreshWater Spa Salt 10 lb | Salt System Refill","description":"\u003cp\u003e\u003cstrong\u003eFreshWater Spa Salt\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis the dedicated spa-grade salt formulated by Watkins Wellness for use with the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eFreshWater Salt System\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eand the older\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eHot Spring ACE Salt Water Sanitizing System\u003c\/strong\u003e. The salt is what powers the entire system — without it, the cartridge has nothing to convert into chlorine, and your saltwater spa is just a regular tub of water.\u003c\/p\u003e\n\u003cp\u003eThis is a\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e10-pound bag\u003c\/strong\u003e, the standard size that ships with new FreshWater Salt System installs and start-up kits, and the right quantity for an initial fill on most residential hot tubs (200–500 gallons). Most owners go through 10–15 pounds in the first fill, then much less for periodic top-ups as water is added.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhy a dedicated spa salt matters.\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eNot all salt is the same. Table salt contains iodine and anti-caking agents that can stain a spa shell and damage the salt cartridge. Water softener salt and rock salt often contain impurities, minerals, or additives that throw off water chemistry, cloud the water, or shorten the life of the titanium cell. FreshWater Spa Salt is formulated specifically for spa-grade purity — no iodine, no anti-caking agents, no metallic impurities. It dissolves cleanly and gives the salt system exactly what it's designed to work with.\u003c\/p\u003e\n\u003cdiv class=\"lti-pro-tip\"\u003e\n\u003cstrong\u003ePro Tip:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eSubstituting hardware-store or grocery salt to save a few dollars is one of the most common ways owners damage their salt system. The cost of a replacement cartridge alone is many times the cost of a year's worth of FreshWater Spa Salt — use the right product from the start.\u003c\/div\u003e\n\u003cdiv class=\"lti-pro-tip\"\u003e\n\u003cstrong\u003e\u003c\/strong\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"lti-pro-tip\"\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cspan role=\"img\" aria-label=\"®\"\u003eFreshWater®\u003c\/span\u003e\u003c\/p\u003e","brand":"FreshWater","offers":[{"title":"Default Title","offer_id":4575852265509,"sku":"80000","price":31.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2507\/5288\/files\/FreshWater_Spa_Salt_10lbs.jpg?v=1778095179"},{"product_id":"vanishing-act-calcium-remover","title":"FreshWater Vanishing Act | Hot Tub Calcium Remover","description":"\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eFreshWater Vanishing Act Calcium Remover\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis a single-use pillow that physically pulls excess calcium out of your spa water — without adding chemicals, without waiting for water to settle, and without dosing math. You rinse it, position it over the heater return, and let it work for 24 hours. The result is softer water, less scale, and a longer life for every heated component in your spa.\u003c\/p\u003e\n\u003cp\u003eHard water is one of the most under-recognized causes of expensive hot tub repairs. Calcium scale coats heaters and reduces their efficiency, builds up on jet bearings, and — for owners of FreshWater Salt System or Hot Spring ACE spas — coats the titanium electrode on the salt cartridge and shortens its lifespan dramatically. Standard balancers can't reduce calcium hardness; once it's in the water, the only way to bring it down is to dilute with softer water or physically remove it. Vanishing Act removes it.\u003c\/p\u003e\n\u003cp\u003eThis is the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003estandard-size pillow\u003c\/strong\u003e, designed for fill water with a calcium hardness reading between roughly 100 and 150 ppm. If your fill water tests above 150 ppm, the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eVanishing Act XL\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ehas three times the calcium removal capacity and is the more efficient single-use solution. The standard size is the right choice for moderate hardness and for top-off maintenance throughout the year.\u003c\/p\u003e\n\u003cdiv class=\"lti-pro-tip\"\u003e\n\u003cstrong\u003ePro Tip:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eIf you're filling a saltwater spa (FreshWater Salt or Hot Spring ACE), Vanishing Act isn't optional — it's required. Salt systems need calcium hardness\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003ebetween 25 and 75 ppm\u003c\/strong\u003e, which is far lower than the standard 150–250 ppm range for chlorine or bromine spas. Most municipal and well water sources are above 75 ppm out of the tap, meaning you'll need to remove calcium before your salt cell will run efficiently.\u003c\/div\u003e\n\u003cdiv class=\"lti-pro-tip\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv class=\"lti-pro-tip\"\u003e\n\u003cdiv class=\"lti-pro-tip\"\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cspan aria-label=\"®\" role=\"img\"\u003eFreshWater®\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e","brand":"FreshWater","offers":[{"title":"Default Title","offer_id":4617329836069,"sku":"80100","price":41.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2507\/5288\/files\/FreshWater_Vanishing_Act.jpg?v=1778096738"},{"product_id":"freshwater-salt-system-replacement-cartridge-3-pack","title":"FreshWater Salt Cartridge 3-Pack | Annual Refill","description":"\u003cdiv\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eFreshWater Salt System Replacement Cartridge 3-Pack\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis a full year of chlorine generation in a single purchase. Each pack contains three genuine Watkins Wellness cartridges — the titanium-electrode cells (sometimes called the \"salt cell\") that power the FreshWater Salt System on compatible Hot Spring and Caldera hot tubs.\u003c\/p\u003e\n\u003cp\u003eThis is the SKU most salt-system owners settle on once they understand the maintenance cycle. A single cartridge runs about\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003efour months\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ein a typical residential spa. Three cartridges back to back cover a full\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003etwelve months\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eof automatic, hands-off chlorine generation — which conveniently matches the manufacturer-recommended\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eannual drain-and-refill\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003einterval for a saltwater spa. Buy once, swap on schedule, drain and refill at the end of the year, and you're set up for the next twelve months.\u003c\/p\u003e\n\u003cp\u003eCompared to buying single cartridges three separate times, the 3-pack is the better per-cartridge value and the simpler way to budget for salt system maintenance. Most owners pin a reminder to their calendar at install, the first swap, and the second swap — and don't think about chlorine again until the next drain-and-refill.\u003c\/p\u003e\n\u003cdiv class=\"lti-pro-tip\"\u003e\n\u003cstrong\u003e⚠️ Counterfeit Warning:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eWatkins Wellness and Hot Spring have publicly warned consumers about counterfeit FreshWater salt cartridges sold on Amazon and other online marketplaces. Generic versions often fail within weeks and can cause permanent damage to your spa's control system — repairs that\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eare not covered under warranty\u003c\/strong\u003e. Every 3-pack sold by Leisure Time Inc. is sourced directly from Watkins Wellness, the original manufacturer. If a 3-pack is priced dramatically below the manufacturer's MAP, it almost certainly isn't real product.\u003c\/div\u003e\n\u003cdiv class=\"lti-pro-tip\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"lti-pro-tip\"\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cspan aria-label=\"®\" role=\"img\"\u003eFreshWater®\u003c\/span\u003e\u003cspan aria-label=\"®\" role=\"img\"\u003e\u003c\/span\u003e\u003cspan aria-label=\"®\" role=\"img\"\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"FreshWater","offers":[{"title":"Default Title","offer_id":32426927751223,"sku":"80004","price":319.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2507\/5288\/files\/FreshWater_Salt_System_Cartridges_Three_Pack.jpg?v=1778095660"},{"product_id":"freshwater-5-way-test-strips","title":"FreshWater 5-Way Test Strips | Hot Tub Water Testing","description":"\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eFreshWater 5-Way Test Strips\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003egive hot tub and spa owners a complete water snapshot in 15 seconds — testing\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003efree chlorine, total bromine, total alkalinity, pH, and total hardness\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ewith a single dip. Manufactured by Watkins Wellness, these strips are designed for Hot Spring, Caldera, and Freeflow spas, but they work on virtually any residential hot tub regardless of brand or sanitizer system.\u003c\/p\u003e\n\u003cp\u003eWater chemistry is the single biggest factor in how long your spa equipment lasts, how comfortable the water feels, and how often you'll need to drain and refill. Unbalanced water corrodes heaters, scales up jets, eats through seals, irritates skin, and forces you to dump chemicals at the problem instead of preventing it. A quick weekly test takes that guesswork out of ownership.\u003c\/p\u003e\n\u003cp\u003eOne bottle. Five readings. No drops, no vials, no separate kits for each parameter. For most spa owners, this is the only test kit you need for routine maintenance.\u003c\/p\u003e\n\u003cdiv class=\"lti-pro-tip\"\u003e\n\u003cstrong\u003ePro Tip:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eEven if your spa runs on ozone, salt, or a mineral cartridge system, you still need to verify a sanitizer residual and balance pH\/alkalinity. These strips read all of it from one dip.\u003c\/div\u003e\n\u003cdiv class=\"lti-pro-tip\"\u003e\n\u003cstrong\u003e\u003c\/strong\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"lti-pro-tip\"\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv class=\"lti-pro-tip\"\u003e\n\u003cp\u003e\u003cspan aria-label=\"®\" role=\"img\"\u003eFreshWater®\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e","brand":"FreshWater","offers":[{"title":"Default Title","offer_id":14392124637239,"sku":"80090","price":11.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2507\/5288\/files\/FreshWater_5-Way_Test_Strips.jpg?v=1778094915"},{"product_id":"freshwater-mps-test-strips","title":"FreshWater MPS Test Strips | Non-Chlorine Shock","description":"\u003cp\u003e\u003cstrong\u003eFreshWater MPS Test Strips\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eare the dedicated dip test for spas running on a non-chlorine shock program — also known as MPS-based water care. A single 2-second dip measures three parameters at once:\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eMPS (monopersulfate) level, pH, and total alkalinity\u003c\/strong\u003e. For owners who use MPS as their primary oxidizer, this is the diagnostic that confirms the program is working.\u003c\/p\u003e\n\u003cp\u003eMPS (potassium monopersulfate) is the active ingredient in non-chlorine shock. Unlike chlorine — which both disinfects and oxidizes — MPS only oxidizes. It breaks down body oils, sweat, sunscreen, and other organic load without adding chlorine or raising chloramine smell. Owners pair it with a smaller chlorine residual (often via Ag+ Silver Ion programs or low-output salt systems) to get the comfort of a \"low chlorine\" spa without sacrificing sanitization.\u003c\/p\u003e\n\u003cp\u003eThis bottle contains\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e50 individually accessed strips\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003esealed in a moisture-resistant flip-top container — roughly a year of weekly testing for most owners, or six months if you test before every soak.\u003c\/p\u003e\n\u003cdiv class=\"lti-pro-tip\"\u003e\n\u003cstrong\u003ePro Tip:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThis strip does\u003cspan\u003e \u003c\/span\u003e\u003cem\u003enot\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003etest for chlorine, bromine, or hardness. If your spa uses chlorine or bromine as the primary sanitizer, you need\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eFreshWater 5-Way Test Strips\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003einstead — those test chlorine, bromine, pH, alkalinity, and hardness. The MPS strip is for MPS-based programs specifically.\u003cstrong\u003e\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"lti-pro-tip\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"lti-pro-tip\"\u003e\n\u003cdiv class=\"lti-pro-tip\"\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cspan aria-label=\"®\" role=\"img\"\u003eFreshWater®\u003c\/span\u003e\u003cspan aria-label=\"®\" role=\"img\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e","brand":"FreshWater","offers":[{"title":"Default Title","offer_id":14392198070327,"sku":"80091","price":9.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2507\/5288\/files\/FreshWater_MPS_Test_Strips.jpg?v=1778261816"},{"product_id":"freshwater-ph-alkalinity-down","title":"FreshWater pH\/Alkalinity Down | Spa Balancer","description":"\u003cp\u003e\u003cstrong\u003eFreshWater pH\/Alkalinity Down\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis a fast-dissolving granular product that lowers both the pH and total alkalinity of your spa water. Active ingredient:\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003esodium bisulfate\u003c\/strong\u003e, a dry acid that's much safer to store and handle than liquid muriatic acid while doing the same chemistry job. Works with every common sanitizer program — chlorine, bromine, ozone, biguanide, FreshWater Salt, Hot Spring ACE, and Ag+ Silver Ion.\u003c\/p\u003e\n\u003cp\u003eHigh pH and high alkalinity sound like the safer direction to err — but they're just as damaging as the low side. When pH climbs above 7.8, three things go wrong at once:\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003echlorine becomes drastically less effective\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e(at pH 8.0, chlorine is roughly half as active as at pH 7.5),\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003escale starts forming\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eon heaters, jets, and salt cells, and\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003ecloudy water becomes the new normal\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eregardless of how much chemistry you add. Sodium bisulfate brings water back into the healthy 7.2–7.8 range so the rest of your sanitizer program can actually do its job.\u003c\/p\u003e\n\u003cp\u003eThe proper target ranges, recommended by Watkins Wellness:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003epH:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e7.2–7.8\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTotal Alkalinity:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e80–120 ppm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eOne bottle handles dozens of corrections for a typical residential spa. This is the natural sibling product to FreshWater pH\/Alkalinity Up — together they cover the full range of acid\/base adjustments most owners ever need.\u003c\/p\u003e\n\u003cdiv class=\"lti-pro-tip\"\u003e\n\u003cstrong\u003ePro Tip:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eOwners of FreshWater Salt System or Hot Spring ACE spas typically use pH\/Alkalinity Down\u003cspan\u003e \u003c\/span\u003e\u003cem\u003emore often\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003ethan Up. Salt-generated chlorine is mildly alkaline as a byproduct of the electrolysis process, so pH naturally drifts upward over time. If your salt-system pH keeps creeping above 7.8 between drain-and-refills, this is the product that brings it back into range.\u003c\/div\u003e\n\u003cdiv class=\"lti-pro-tip\"\u003e\n\u003cdiv class=\"lti-pro-tip\"\u003e\n\u003cstrong\u003e\u003c\/strong\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"lti-pro-tip\"\u003e\n\u003cdiv class=\"lti-pro-tip\"\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cspan role=\"img\" aria-label=\"®\"\u003eFreshWater®\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"FreshWater","offers":[{"title":"Default Title","offer_id":31818220732471,"sku":"80041","price":11.39,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2507\/5288\/files\/FreshWater_pH_Alkalinity_Down.jpg?v=1778261025"},{"product_id":"freshwater-concentrated-chlorinating-granules-2lbs","title":"FreshWater Chlorine Granules 2 lb | Spa Chlorine","description":"\u003cp\u003e\u003cstrong\u003eFreshWater Concentrated Chlorinating Granules\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ein the 2 lb size is the right starter for new chlorine-program spa owners, occasional users, and smaller spa setups where a 3.5 lb container would sit half-used for too long. Same fast-dissolving, pH-neutral\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003esodium dichlor\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eformula as the larger size — just sized for a more modest commitment.\u003c\/p\u003e\n\u003cp\u003eDichlor is the chlorine specifically formulated for hot tubs. Standard pool chlorines — calcium hypochlorite (cal-hypo) and trichlor — are designed for outdoor pool volumes and chemistry, and will damage spa equipment over time. Cal-hypo raises calcium hardness with every dose, eventually scaling heaters and salt cells. Trichlor is acidic, driving pH down aggressively and corroding spa interiors. Dichlor is pH-neutral, dissolves quickly in spa-temperature water, and is the form chlorine should take when added to a residential hot tub.\u003c\/p\u003e\n\u003cp\u003eTwo situations where the 2 lb size is the better choice than the 3.5 lb:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eNew chlorine-program owners\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ewho want to try the FreshWater chemistry program before committing to a year's supply\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSalt System, ACE, or Ag+ Silver Ion owners\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ewho only use chlorine for periodic shock — not enough volume to justify a 3.5 lb container before it ages\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSmaller spas, plunge pools, and inflatable hot tubs\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ewith lower total water volumes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVacation homes and seasonal-use spas\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ewhere the tub isn't running year-round\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eFor households running a chlorine program full-time on a typical 400-gallon spa, the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e3.5 lb container\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis the better per-pound value.\u003c\/p\u003e\n\u003cdiv class=\"lti-pro-tip\"\u003e\n\u003cstrong\u003ePro Tip:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eTarget sanitizer residual for a chlorine spa is\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e2–3 ppm of free available chlorine\u003c\/strong\u003e. Higher than 5 ppm means you should not enter the spa — let chlorine dissipate naturally before reuse. The most common new-owner mistake is over-dosing, then trying to soak before the chlorine drops back into range.\u003c\/div\u003e\n\u003cdiv class=\"lti-pro-tip\"\u003e\n\u003cdiv class=\"lti-pro-tip\"\u003e\n\u003cstrong\u003e\u003c\/strong\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"lti-pro-tip\"\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cspan aria-label=\"®\" role=\"img\"\u003eFreshWater®\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e","brand":"FreshWater","offers":[{"title":"Default Title","offer_id":31818247766071,"sku":"80021","price":33.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2507\/5288\/files\/FreshWater_Concentrated_Chlorinating_Granules_2lb.jpg?v=1778262578"},{"product_id":"freshwater-cover-shield","title":"FreshWater Cover Shield","description":"\u003cp\u003e\u003cstrong\u003eFreshWater Cover Shield\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis a wipe-on liquid that cleans, restores luster, and protects the vinyl exterior of your spa cover. One 16 oz bottle treats most full-size hot tub covers four or five times — typically a full year of maintenance applications, plus the initial two-coat treatment when you first apply it.\u003c\/p\u003e\n\u003cp\u003eYour spa cover is the most expensive component on the outside of your hot tub. A quality replacement runs\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eseveral hundred to over a thousand dollars\u003c\/strong\u003e, plus installation. And of all the things that shorten cover life, vinyl degradation from UV exposure is the worst — direct sunlight breaks down vinyl plasticizers over time, leaving the cover faded, brittle, and prone to cracking along stress points. Once vinyl cracks, water gets into the foam core. Once the foam absorbs water, the cover gets heavy, sags, and stops insulating. From there, replacement is the only fix.\u003c\/p\u003e\n\u003cp\u003eCover Shield does three things to slow that degradation:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCleans\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eoff accumulated dirt, dust, mineral residue, and environmental contamination from the vinyl surface\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRestores luster\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eby replenishing surface plasticizers that wear away over time, keeping the vinyl supple\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProtects\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eby laying down a UV-resistant water-repellent film that shields the vinyl from sunlight, rain, snow, and dust\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eFor a few minutes of work two or three times a year, you significantly extend the useful life of an expensive component. The math on this product is straightforward: a single bottle costs a small fraction of even one replacement cover.\u003c\/p\u003e\n\u003cdiv class=\"lti-pro-tip\"\u003e\n\u003cstrong\u003ePro Tip:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe single most damaging thing for your spa cover isn't sun, snow, or weight — it's\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003echlorine and bromine vapor\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003etrapped between the cover and the water surface. After every shock dose, leave the cover off (or propped open) for at least an hour while chlorine residual drops back to 5 ppm or below. Closing the cover over high-chlorine water concentrates corrosive vapor against the vinyl underside and destroys covers faster than any external weather can.\u003c\/div\u003e\n\u003cdiv class=\"lti-pro-tip\"\u003e\n\u003cdiv class=\"lti-pro-tip\"\u003e\n\u003cstrong\u003e\u003c\/strong\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"lti-pro-tip\"\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cspan aria-label=\"®\" role=\"img\"\u003eFreshWater®\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e","brand":"FreshWater","offers":[{"title":"Default Title","offer_id":31818361634871,"sku":"80105","price":13.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2507\/5288\/files\/FreshWater_Cover_Shield_b8d68b86-f06b-4d18-a827-e5c8f2c22889.jpg?v=1778264624"},{"product_id":"freshwater-stain-scale-defense","title":"FreshWater Stain \u0026 Scale Defense | Spa Sequestrant","description":"\u003cp\u003e\u003cstrong\u003eFreshWater Stain \u0026amp; Scale Defense\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis a weekly maintenance treatment that prevents calcium scale from forming on spa surfaces and equipment, and prevents dissolved metals (iron, copper, manganese) from staining your spa shell. Active ingredient: a blend of\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eorganic polymers\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ethat bind to calcium and metal ions and keep them suspended in solution where they can't deposit or react.\u003c\/p\u003e\n\u003cp\u003eThis product handles two of the most common long-term damage modes in a residential hot tub:\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003escale\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e(white, crusty calcium deposits on heaters, jets, and water lines) and\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003emetallic staining\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e(brown, blue-green, or rust-colored discoloration on the spa shell). Once either of these problems is visible, they're expensive to reverse — scale destroys heaters and shortens salt cartridge life, and metallic stains can permanently mark a spa shell. Stain \u0026amp; Scale Defense is preventive maintenance that costs less than fixing the damage it prevents.\u003c\/p\u003e\n\u003cp\u003eImportant distinction: this is a\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003esequestrant\u003c\/strong\u003e, not a remover. Stain \u0026amp; Scale Defense chemically binds to calcium and metals so they don't form scale or stains — but the minerals stay in your water. If you have genuinely high calcium hardness (especially in salt-system spas), you also need\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eFreshWater Vanishing Act Calcium Remover\u003c\/strong\u003e, which physically removes calcium via ion-exchange resin. The two products handle related but different problems: Stain \u0026amp; Scale Defense manages what's there; Vanishing Act gets rid of what's there.\u003c\/p\u003e\n\u003cdiv class=\"lti-pro-tip\"\u003e\n\u003cstrong\u003ePro Tip:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eIf you fill your spa from a well, or live in a hard-water region with municipal water above 150 ppm, add a dose of Stain \u0026amp; Scale Defense\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003ebefore\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ethe first chlorine or shock treatment on a fresh fill. Wait 24 hours, then add sanitizers. This prevents dissolved iron and copper from oxidizing and depositing as stains the moment chlorine hits the water — the most common cause of brown or green-tinted shells on freshly filled spas.\u003c\/div\u003e\n\u003cdiv class=\"lti-pro-tip\"\u003e\n\u003cdiv class=\"lti-pro-tip\"\u003e\n\u003cstrong\u003e\u003c\/strong\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"lti-pro-tip\"\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cspan aria-label=\"®\" role=\"img\"\u003eFreshWater®\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e","brand":"FreshWater","offers":[{"title":"Default Title","offer_id":31818497065015,"sku":"80042","price":12.39,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2507\/5288\/files\/FreshWater_Stain_And_Scale.jpg?v=1778263669"},{"product_id":"freshwater-ph-alkalinity-up","title":"FreshWater pH\/Alkalinity Up | Spa Balancer","description":"\u003cp\u003e\u003cstrong\u003eFreshWater pH\/Alkalinity Up\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis a fast-dissolving granular product that raises both the pH and total alkalinity of your spa water in a single dose. Active ingredient: sodium carbonate (soda ash). One bottle handles dozens of adjustments for a typical residential spa and works with every sanitizer system — chlorine, bromine, ozone, biguanide, FreshWater Salt, and Hot Spring ACE.\u003c\/p\u003e\n\u003cp\u003eWhy this product matters: low pH and low alkalinity are two of the most damaging conditions you can run a spa in. Acidic water (pH below 7.2) corrodes heater elements, eats through seals and gaskets, pits metal jets, and degrades the spa shell over time. Low alkalinity (below 80 ppm) means your pH has no buffer — it swings wildly with every chemical you add, every shock, every fresh body in the water. Most \"constantly chasing pH\" frustration is actually an alkalinity problem in disguise.\u003c\/p\u003e\n\u003cp\u003eThe proper target ranges, recommended by Watkins Wellness:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTotal Alkalinity:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e80–120 ppm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003epH:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e7.2–7.8\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAdjust alkalinity first, then pH. That sequence is the difference between a balanced spa and a spa you spend every weekend tweaking.\u003c\/p\u003e\n\u003cdiv class=\"lti-pro-tip\"\u003e\n\u003cstrong\u003ePro Tip:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eSodium carbonate (soda ash) raises both pH and alkalinity together — but it raises pH more aggressively per gram than alkalinity. If your pH is already in range but your alkalinity is low, dose conservatively, retest, and add more in small increments. Overshooting pH is the most common mistake with this product.\u003c\/div\u003e\n\u003cdiv class=\"lti-pro-tip\"\u003e\n\u003cstrong\u003e\u003c\/strong\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"lti-pro-tip\"\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv class=\"lti-pro-tip\"\u003e\n\u003cp\u003e\u003cspan aria-label=\"®\" role=\"img\"\u003eFreshWater®\u003c\/span\u003e\u003cspan aria-label=\"®\" role=\"img\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e","brand":"FreshWater","offers":[{"title":"Default Title","offer_id":31822017101879,"sku":"80040","price":11.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2507\/5288\/files\/FreshWater_pH_Alkalinity_Up.jpg?v=1778193499"},{"product_id":"freshwater-defoamer","title":"FreshWater Defoamer | Hot Tub Foam Treatment","description":"\u003cp\u003e\u003cstrong\u003eFreshWater Defoamer\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis a fast-acting, oil-free silicone formula that knocks down foam on spa water in seconds. Spray or pour directly onto active foam, watch it break down and disappear, and you have your water surface back. One 16 fl oz bottle handles dozens of typical foaming events for most spa owners.\u003c\/p\u003e\n\u003cp\u003eFoam in a hot tub is almost always a symptom of organic surfactants in the water — body oils, sunscreen, lotion, hair products, residual laundry soap from swimsuits, or pet contamination if your dog joined a soak. When the spa's circulation churns water with these surfactants present, foam forms on the surface and can rapidly build to several inches deep. Defoamer breaks the bubble surface tension and collapses the foam immediately.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHonest framing\u003c\/strong\u003e: this is a symptom-treater, not a cure. If foam keeps reappearing within hours or days after treatment, the spa is telling you about an underlying problem — typically\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003elow calcium hardness\u003c\/strong\u003e,\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eaccumulated organic load\u003c\/strong\u003e,\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003ea clogged filter\u003c\/strong\u003e, or\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003ewater that's simply due for a drain-and-refill\u003c\/strong\u003e. Defoamer buys you a clean water surface; the real fix is one of those four interventions.\u003c\/p\u003e\n\u003cdiv class=\"lti-pro-tip\"\u003e\n\u003cstrong\u003ePro Tip:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe single most common cause of unexpected foaming is residual laundry detergent on swimsuits and towels. Rinse swimwear in plain water (no detergent) and let it air-dry before the next soak. This eliminates roughly half the \"why is my hot tub foaming?\" calls that come into our support line.\u003c\/div\u003e\n\u003cdiv class=\"lti-pro-tip\"\u003e\n\u003cdiv class=\"lti-pro-tip\"\u003e\n\u003cstrong\u003e\u003c\/strong\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"lti-pro-tip\"\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cspan aria-label=\"®\" role=\"img\"\u003eFreshWater®\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e","brand":"FreshWater","offers":[{"title":"Default Title","offer_id":31822083424311,"sku":"80043","price":11.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2507\/5288\/files\/FreshWater_Defoamer.jpg?v=1778262804"},{"product_id":"freshwater-instant-filter-cleaner","title":"FreshWater Instant Filter Cleaner | Spa Spray","description":"\u003cp\u003e\u003cstrong\u003eFreshWater Instant Filter Cleaner\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis a 16 oz spray-on, no-soak formula that removes the body oils, sunscreen, lotion residue, scale, and mineral buildup that clog spa filter cartridges. Spray it on, wait five minutes, rinse off — total job time is under ten minutes per filter. No overnight soak, no smelly chemical bucket, no dedicated tools.\u003c\/p\u003e\n\u003cp\u003eYour filter is the most overworked part of your spa. Every gallon of water in the tub passes through it dozens of times a day, and every bit of contamination — body oils, lotion residue, sunscreen, hair products, sweat, dust, dissolved minerals — gets trapped in the pleats. As the filter clogs, three things happen at once: your circulation pump works harder (shortening its life), your sanitizer can't reach contaminated water effectively (so chlorine demand goes up), and your water gradually turns cloudy regardless of how much chemistry you throw at it.\u003c\/p\u003e\n\u003cp\u003eMost owners overdose chemicals trying to fix water clarity problems when the actual fix is a five-minute filter cleaning. A clean filter does more for water quality than any clarifier, defoamer, or shock product. This is the cheapest, fastest hot tub maintenance task with the biggest return — and most people skip it for months.\u003c\/p\u003e\n\u003cdiv class=\"lti-pro-tip\"\u003e\n\u003cstrong\u003ePro Tip:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe single best diagnostic for \"why is my water cloudy?\" is to pull the filter and look at it. If it's gray, brown, or the pleats are stiff with residue, the filter is the problem. Clean it, run the spa for 24 hours, and most cloudiness issues solve themselves before you even think about adding more chemicals.\u003c\/div\u003e\n\u003cdiv class=\"lti-pro-tip\"\u003e\n\u003cdiv class=\"lti-pro-tip\"\u003e\n\u003cstrong\u003e\u003c\/strong\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"lti-pro-tip\"\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cspan aria-label=\"®\" role=\"img\"\u003eFreshWater®\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e","brand":"FreshWater","offers":[{"title":"Default Title","offer_id":31822196834359,"sku":"80108","price":13.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2507\/5288\/files\/Freshwater-Instant-Filter-Cleaner.png?v=1709751948"},{"product_id":"freshwater-concentrated-chlorinating-granules-3-5lb","title":"FreshWater Chlorine Granules 3.5 lb | Spa Chlorine","description":"\u003cp\u003e\u003cstrong\u003eFreshWater Concentrated Chlorinating Granules\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis the primary sanitizer for spas running on a chlorine water care program — and the periodic shock product for spas running on FreshWater Salt System, Hot Spring ACE, or Ag+ Silver Ion programs. Active ingredient:\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003esodium dichloro-s-triazinetrione (dichlor)\u003c\/strong\u003e, a fast-dissolving, pH-neutral form of chlorine designed specifically for hot tubs.\u003c\/p\u003e\n\u003cp\u003eThis is the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e3.5 lb container\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e— the size most chlorine-system owners settle on after their first refill. A 3.5 lb container handles roughly six months of routine sanitation for a typical 400-gallon spa with normal bather load, or about three months of heavy use. For lower-volume use cases or first-time buyers, the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e2 lb container\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis a smaller starter size in the same product line.\u003c\/p\u003e\n\u003cp\u003eWhy dichlor specifically (versus other chlorine forms): standard pool chlorines like calcium hypochlorite and trichlor are formulated for outdoor pools and will damage spa equipment. Calcium hypo raises calcium hardness over time, scaling heaters and salt cells. Trichlor is acidic, driving pH down with every dose and corroding spa interiors. Dichlor is pH-neutral, dissolves quickly without leaving residue, and stays clean in solution. It's the right chemistry for the small water volume and high temperature of a residential spa.\u003c\/p\u003e\n\u003cdiv class=\"lti-pro-tip\"\u003e\n\u003cstrong\u003ePro Tip:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe target sanitizer residual for a chlorine-system spa is\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e2–3 ppm of free available chlorine\u003c\/strong\u003e. Higher than 5 ppm means you should not enter the spa — let the chlorine dissipate naturally before reuse. The most common new-owner mistake is dosing way over-target, then trying to soak before the chlorine drops back into range.\u003c\/div\u003e\n\u003cdiv class=\"lti-pro-tip\"\u003e\n\u003cdiv class=\"lti-pro-tip\"\u003e\n\u003cstrong\u003e\u003c\/strong\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"lti-pro-tip\"\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cspan aria-label=\"®\" role=\"img\"\u003eFreshWater®\u003c\/span\u003e\u003cspan aria-label=\"®\" role=\"img\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e","brand":"FreshWater","offers":[{"title":"Default Title","offer_id":32392367964215,"sku":"80022","price":57.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2507\/5288\/files\/FreshWater_Concentrated_Chlorinating_Granules_5lb.jpg?v=1778259486"},{"product_id":"freshwater-phosphate-test-strips","title":"FreshWater Phosphate Test Strips","description":"\u003cp\u003e\u003cstrong\u003eFreshWater Phosphate Test Strips\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eare the diagnostic that explains a question most spa owners eventually ask: \"Why is my sanitizer not working?\" Phosphates in spa water are invisible, undetectable by sight or smell, and act as fuel for algae while quietly consuming your chlorine residual. A single dip with this strip tells you whether phosphates are the hidden problem behind cloudy water, sanitizer demand that climbs faster than it should, or persistent algae that keeps coming back after shock treatments.\u003c\/p\u003e\n\u003cp\u003ePhosphates enter spa water from several routine sources — municipal fill water (many cities add phosphates to prevent pipe corrosion), well water in agricultural regions (fertilizer runoff), bather contamination (soap residue and personal care products), and dust or leaf debris that falls in through the cover. Once present, phosphates don't go away on their own. They accumulate over the life of a fill, and the longer your water sits between drain-and-refills, the higher they climb.\u003c\/p\u003e\n\u003cp\u003eThe threshold matters:\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003ekeep phosphates below 300 ppb (parts per billion)\u003c\/strong\u003e. Above 300 ppb, you'll typically see one or more of three symptoms — chlorine residual that drops faster than usual, water that turns cloudy without obvious cause, or algae growth that returns within days of shocking. Below 300 ppb, phosphates have no functional effect on water quality.\u003c\/p\u003e\n\u003cp\u003eThis bottle contains\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e25 individually accessed strips\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ein a sealed bottle with a molded desiccant liner that protects the strips from moisture intrusion — a key feature for accurate readings.\u003c\/p\u003e\n\u003cdiv class=\"lti-pro-tip\"\u003e\n\u003cstrong\u003ePro Tip:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThis strip is the diagnostic; treatment is a separate step. If your reading comes back high, you'll need a phosphate remover product to bring levels back down — testing alone doesn't reduce phosphates. Some chronically affected owners pair phosphate testing with a monthly phosphate remover treatment as preventive maintenance.\u003c\/div\u003e\n\u003cdiv class=\"lti-pro-tip\"\u003e\n\u003cdiv class=\"lti-pro-tip\"\u003e\n\u003cstrong\u003e\u003c\/strong\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"lti-pro-tip\"\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cspan aria-label=\"®\" role=\"img\"\u003eFreshWater®\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e","brand":"FreshWater","offers":[{"title":"Default Title","offer_id":39452648833079,"sku":"80093","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2507\/5288\/files\/FreshWater_Phosphate_Test_Strips.jpg?v=1778265245"},{"product_id":"freshwater-filter-cleaner","title":"FreshWater Filter Cleaner","description":"\u003cp\u003e\u003cstrong\u003eFreshWater Filter Cleaner\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis the granular deep-clean formula for spa filter cartridges — the quarterly or semi-annual treatment that goes beyond a rinse-and-spray maintenance to restore a heavily used filter to near-new condition. Dissolve the granules in water, soak the filter overnight, rinse thoroughly, and reinstall. The result is a filter that's actually clean down to the pleats — not just rinsed clean on the surface.\u003c\/p\u003e\n\u003cp\u003eThe 2.7 lb container holds enough granules for\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003emultiple deep-clean cycles\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e— typically a year or more of quarterly maintenance for a single-filter spa, or two cleanings for a swim spa with multiple cartridges. Each cleaning consumes only a portion of the container.\u003c\/p\u003e\n\u003cp\u003eWhy this product matters when you already have other filter cleaners: spa filters accumulate two different kinds of contamination, and they need two different treatments:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSurface contamination\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e— visible debris, oils, and lotion residue on the outer pleats. Handled well by the FreshWater Instant Filter Cleaner (the spray-and-rinse product) on a monthly basis.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDeep contamination\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e— minerals, organic buildup, and embedded oils that work their way into the cartridge fiber over time. Surface sprays can't reach this. The only fix is an overnight soak in a deep-cleaning chemistry.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIf you've ever had a filter that \"feels clean\" after spraying but the water still won't clear up, deep contamination is the likely cause. Surface cleaning alone leaves embedded gunk in place; deep soaking dissolves it out.\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eMany \"filter is going bad\" judgments are actually filters that haven't had a proper deep clean in a year or two\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e— restorable, not replaceable, with the right product.\u003c\/p\u003e\n\u003cdiv class=\"lti-pro-tip\"\u003e\n\u003cstrong\u003ePro Tip:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eRun the Instant Filter Cleaner spray monthly, and the deep-soak granular cleaner (this product) every 3 months — two products with two different jobs. The deep-soak handles what surface sprays can't reach. Owners who use only one or the other typically end up replacing filters two to three times more often than owners who use both.\u003c\/div\u003e\n\u003cdiv class=\"lti-pro-tip\"\u003e\n\u003cdiv class=\"lti-pro-tip\"\u003e\n\u003cstrong\u003e\u003c\/strong\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"lti-pro-tip\"\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cspan aria-label=\"®\" role=\"img\"\u003eFreshWater®\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e","brand":"FreshWater","offers":[{"title":"Default Title","offer_id":39942624772151,"sku":"80109","price":28.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2507\/5288\/files\/FreshWater_Filter_Cleaner.jpg?v=1778267282"},{"product_id":"freshwater-phosphate-remover","title":"FreshWater Phosphate Remover","description":"\u003cp\u003e\u003cstrong\u003eFreshWater Phosphate Remover\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis the treatment side of the phosphate equation — the concentrated liquid formula that pulls phosphates out of your spa water once a test confirms they're above the 300 ppb threshold. A single 16 fl oz bottle handles multiple initial treatments and many weeks of maintenance dosing for a typical residential spa.\u003c\/p\u003e\n\u003cp\u003eWhy phosphates need a dedicated remover product: phosphates don't dissipate, don't get filtered out by a cartridge, and don't break down under chlorine or other oxidizers. Once they're in your spa water, they stay until you either physically remove them (this product) or drain the water. That accumulation is the hidden reason behind a lot of \"mystery\" water quality problems — algae that keeps coming back, sanitizer that keeps disappearing, cloudy water that won't clear despite seemingly correct chemistry.\u003c\/p\u003e\n\u003cp\u003eThis product is the matched treatment to FreshWater Phosphate Test Strips:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePhosphate Test Strips\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e= the diagnostic that tells you whether phosphates are the problem\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePhosphate Remover\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e(this product) = the treatment that removes them\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003ePair the two products together and you have the full kit for managing phosphates in your spa water. Test, treat, retest, confirm — and your water care chemistry can do its actual job without an invisible enemy quietly consuming sanitizer and feeding algae.\u003c\/p\u003e\n\u003cdiv class=\"lti-pro-tip\"\u003e\n\u003cstrong\u003ePro Tip:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eDon't dose Phosphate Remover blindly. Test first. Phosphate Remover is most effective when matched to actual levels — under-dosing leaves the problem unfixed, and over-dosing wastes product. A 5-second test with the FreshWater Phosphate Test Strips tells you exactly how much you need to dose, which is more economical than guessing high.\u003c\/div\u003e\n\u003cdiv class=\"lti-pro-tip\"\u003e\n\u003cdiv class=\"lti-pro-tip\"\u003e\n\u003cstrong\u003e\u003c\/strong\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"lti-pro-tip\"\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cspan aria-label=\"®\" role=\"img\"\u003eFreshWater®\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e","brand":"FreshWater","offers":[{"title":"Default Title","offer_id":39995709849655,"sku":"80044","price":24.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2507\/5288\/files\/FreshWater_Phosphate_Remove.jpg?v=1778269273"},{"product_id":"freshwater-salt-system-start-up-kit","title":"FreshWater Salt System Start-Up Kit","description":"\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eFreshWater Salt System Start-Up Kit\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis the complete launch package that converts a salt-ready Hot Spring or Caldera spa from chlorine or bromine to the FreshWater Salt System — Watkins Wellness's automated, low-chemistry sanitization platform. The kit includes every component needed to install the system, balance fill water properly, generate your first chlorine residual, and confirm everything is working as intended. Buying these components individually would cost meaningfully more than the kit price; everything that ships in this box is genuine Watkins Wellness, designed to work together from day one.\u003c\/p\u003e\n\u003cp\u003eThis is the gateway purchase for an entirely different spa ownership experience. Once installed, your spa generates chlorine automatically from dissolved salt, holding a steady sanitizer residual for months at a time without your daily intervention. No more measuring dichlor by the teaspoon. No more chlorine smell. No more eye sting from out-of-range chemistry. The water itself feels softer against skin — a real, measurable difference that owners notice within the first soak.\u003c\/p\u003e\n\u003cp\u003eTwo things to confirm before you buy:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eYour spa must be \"salt-ready\"\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e— most Hot Spring Highlife and Limelight Collection spas from 2019 onward have the pre-installed salt-system hardware (the cartridge dock and electrical connections). Caldera Utopia and Paradise models from the same era are also typically salt-ready. Older spas, Hot Spring Hot Spot\/TX\/SX, Caldera Vacanza, and Freeflow models\u003cspan\u003e \u003c\/span\u003e\u003cem\u003edon't\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003ehave this hardware and can't accept the system.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVerify before ordering\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e— check the model label on the equipment bay, look at your owner's manual, or call our service team with your spa model and year. We can confirm salt-readiness in under a minute.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv class=\"lti-pro-tip\"\u003e\n\u003cstrong\u003ePro Tip:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eIf your spa has the FreshWater IQ Smart Monitoring System (factory-installed on 2024+ Hot Spring Highlife\/Limelight and Caldera Utopia\/Paradise), the IQ controller is a separate component from the Salt System hardware in this kit. The IQ Start-Up Kit (SKU 80201) adds intelligent monitoring on top of the Salt System. If you have a 2024+ IQ-equipped spa that already has the IQ controller installed and you just need to start the Salt System with consumables, this kit is the right one. Not sure which you need? Call us with your model and year.\u003c\/div\u003e\n\u003cdiv class=\"lti-pro-tip\"\u003e\n\u003cdiv class=\"lti-pro-tip\"\u003e\n\u003cstrong\u003e\u003c\/strong\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"lti-pro-tip\"\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cspan aria-label=\"®\" role=\"img\"\u003eFreshWater®\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e","brand":"FreshWater","offers":[{"title":"Default Title","offer_id":40287888572471,"sku":"80001","price":399.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2507\/5288\/files\/FreshWater_Salt_System.jpg?v=1778278219"},{"product_id":"freshwater-vanishing-act-xl-calcium-remover","title":"FreshWater Vanishing Act XL Calcium Remover","description":"\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eFreshWater Vanishing Act XL Calcium Remover\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis the heavy-duty version of the standard Vanishing Act, designed for spa owners filling from\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003egenuinely hard water sources\u003c\/strong\u003e. With three times the calcium-binding capacity of the standard size, the XL handles fill water above 150 ppm in a single 72-hour treatment — situations where a standard Vanishing Act would need multiple consecutive applications or simply wouldn't keep up.\u003c\/p\u003e\n\u003cp\u003eIf you've measured your fill water and the calcium hardness reading came back at 150 ppm, 200 ppm, or higher — common in the American Southwest, parts of the Mountain West, and many municipal supplies with hard groundwater — the XL is the right tool for the job. So is anyone filling from a well in a limestone region, or anyone whose previous spa runs ended with white scale on the heater and waterline despite using a standard Vanishing Act.\u003c\/p\u003e\n\u003cp\u003eThe XL exists because not all hard water is the same:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eModerately hard water (75–150 ppm)\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e— the standard Vanishing Act handles this comfortably in a 24-hour treatment\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHard water (150–300 ppm)\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e— the XL is the right size; one bag, one 72-hour treatment\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVery hard water (300+ ppm)\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e— XL combined with a hose-end pre-filter or portable water softener for the fill itself\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe math favors the XL for any owner with consistently hard fill water. One XL bag does the work of approximately three standard bags, with one filter run cycle instead of three. Less waste, less time, less effort.\u003c\/p\u003e\n\u003cdiv class=\"lti-pro-tip\"\u003e\n\u003cstrong\u003ePro Tip:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eIf you're not sure whether you need the XL or the standard size, test your fill water before deciding. Run a FreshWater 5-Way Test Strip on water straight from the hose (before it enters the spa). Below 150 ppm calcium hardness, the standard size is enough. Above 150 ppm, choose the XL. This single test saves the cost of buying the wrong size — and tells you exactly what you're dealing with for every fill going forward.\u003c\/div\u003e\n\u003cdiv class=\"lti-pro-tip\"\u003e\n\u003cdiv class=\"lti-pro-tip\"\u003e\n\u003cstrong\u003e\u003c\/strong\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"lti-pro-tip\"\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cspan aria-label=\"®\" role=\"img\"\u003eFreshWater®\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e","brand":"FreshWater","offers":[{"title":"Default Title","offer_id":40287896633399,"sku":"80101","price":64.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2507\/5288\/files\/FreshWater_Vanishing_Act_XL.jpg?v=1778268267"},{"product_id":"freshwater-spa-vac","title":"FreshWater Spa Vac","description":"\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eFreshWater Spa Vac\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis a portable, manual hot tub vacuum that removes debris from the bottom of your spa shell without draining a drop of water. Leaves, dirt, sand, hair ties, pebbles, the occasional bottle cap — anything that's fallen in and settled out of suspension that your cartridge filter isn't going to catch — gets sucked into the vacuum's collection chamber while you stand outside the spa with the wand. Empty the chamber, and you're done.\u003c\/p\u003e\n\u003cp\u003eThis is the tool that fills the gap between two things every spa owner already has: a\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003efilter cartridge\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e(which catches suspended particles being moved by circulation) and a\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eskim net\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e(which catches floating debris on the water surface). Neither one helps with anything that's settled to the bottom of the shell. That's the Spa Vac's job — and once you've done it for the first time, you'll be surprised what's accumulated on your spa floor.\u003c\/p\u003e\n\u003cp\u003eFor most owners, three situations are when the Spa Vac earns its place in the maintenance routine:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBetween drain-and-refill cycles\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e— quick monthly cleanup to remove what's settled out since the last full water change\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAfter windy weather, storms, or fallen leaves\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e— outdoor spas accumulate environmental debris that floats briefly then sinks\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBefore guests arrive\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e— a clean-looking spa floor matters when others can see down to the bottom\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe Spa Vac is the kind of tool that doesn't get talked about much because chemistry pages dominate spa maintenance conversations. But owners who use one tend to use it often — and owners who don't have one tend to either drain more often than necessary or live with debris on the bottom of their spa.\u003c\/p\u003e\n\u003cdiv class=\"lti-pro-tip\"\u003e\n\u003cstrong\u003ePro Tip:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eA quick vacuum before a fresh-fill drain cuts down on cleanup once the spa is empty. Settled debris that was loose underwater becomes stuck-down sediment once the spa drains, requiring more aggressive scrubbing. Vacuum first, then drain, and the empty shell wipes clean in a fraction of the time.\u003c\/div\u003e\n\u003cdiv class=\"lti-pro-tip\"\u003e\n\u003cdiv class=\"lti-pro-tip\"\u003e\n\u003cstrong\u003e\u003c\/strong\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"lti-pro-tip\"\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cspan aria-label=\"®\" role=\"img\"\u003eFreshWater®\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e","brand":"FreshWater","offers":[{"title":"Default Title","offer_id":40287968198711,"sku":"80115","price":66.39,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2507\/5288\/files\/FreshWater_Spa_Vac.jpg?v=1778277676"},{"product_id":"freshwater-salt-system-replacement-cartridge","title":"FreshWater Salt Cartridge | Salt System Refill","description":"\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eFreshWater Salt System Replacement Cartridge\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis the titanium-electrode cartridge (sometimes called the \"cell\") that powers the FreshWater Salt System — Watkins Wellness's saltwater sanitization technology built into compatible Hot Spring and Caldera hot tubs. It's the consumable component that converts dissolved salt into a steady, automatic supply of pure chlorine, keeping your spa water clean for months without measuring or dosing chlorine by hand.\u003c\/p\u003e\n\u003cp\u003eThis is the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003esingle-cartridge SKU\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e— designed for owners who want to replace one cartridge at a time. Each cartridge runs roughly\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003efour months\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ein a typical residential spa before the titanium coating naturally depletes. Three cartridges cover a full year of operation, which is also the recommended drain-and-refill interval for a FreshWater Salt System.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhy timely replacement matters:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eA worn cartridge can't generate enough chlorine to keep your spa sanitized. Cloudy water, weak readings, and skin irritation are usually the first signs. Some owners try to compensate by cranking the system's output level higher — but that only accelerates the wear on the depleted cell and can damage the controller. Replacing on schedule is cheaper than rebuilding the system.\u003c\/p\u003e\n\u003cdiv class=\"lti-pro-tip\"\u003e\n\u003cstrong\u003e⚠️ Counterfeit Warning:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eWatkins Wellness and Hot Spring have publicly warned consumers about counterfeit FreshWater salt cartridges sold on Amazon and other online marketplaces. Generic versions often fail within weeks and can cause permanent damage to your spa's control system — repairs that\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eare not covered under warranty\u003c\/strong\u003e. Every cartridge sold by Leisure Time Inc. is sourced directly from Watkins Wellness, the original manufacturer. If the price seems too good to be true, it almost certainly isn't a real cartridge.\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cspan aria-label=\"®\" role=\"img\"\u003eFreshWater®\u003c\/span\u003e\u003c\/p\u003e","brand":"FreshWater","offers":[{"title":"Default Title","offer_id":40613810765879,"sku":"80004-1","price":129.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2507\/5288\/files\/FreshWater_Salt_System_Cartridge.jpg?v=1778264012"},{"product_id":"freshwater-iq-start-up-kit","title":"FreshWater IQ Start-Up Kit","description":"\u003cp\u003e\u003cstrong\u003eFreshWater IQ Start-Up Kit\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOverview\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan class=\"lti-badge\"\u003e100% AUTHENTIC OEM\u003c\/span\u003e\u003cspan\u003e The \u003c\/span\u003e\u003cstrong\u003eFreshWater IQ Start-Up Kit\u003c\/strong\u003e\u003cspan\u003e is the smart-monitoring upgrade for your FreshWater Salt System — the kit that turns automatic chlorine generation into an intelligent water care platform with \u003c\/span\u003e\u003cstrong\u003ereal-time chemistry monitoring, smart alerts, and precision dosing\u003c\/strong\u003e\u003cspan\u003e. The kit installs the IQ controller and sensor, then connects to your existing FreshWater Salt System to deliver hourly chlorine, pH, and salt readings directly on your topside control panel — plus actionable recommendations for any chemistry adjustments needed. Available for 2024 and newer Hot Spring Highlife, Hot Spring Limelight, Caldera Utopia, and Caldera Paradise spas.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cmeta charset=\"utf-8\"\u003e \u003cstrong\u003e⚠️ Caldera Utopia owners — you probably already have this kit.\u003c\/strong\u003e The IQ Start-Up Kit ships pre-installed in 2024+ Caldera Utopia spas at the factory. If you own a Utopia, check your spa's control panel for IQ readings (chlorine, pH, salt) before ordering this kit. If you're already seeing those readings, you only need the \u003ca href=\"https:\/\/shop.leisuretimeinc.com\/products\/freshwater-iq-replacement-sensor\"\u003e12-month replacement sensor\u003c\/a\u003e, not the full kit. Buying this kit when you already have one factory-installed is a $429.99 mistake — and we cannot accept returns on electronic items.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat's Included in the IQ Start-Up Kit\u003c\/strong\u003e\u003c\/p\u003e\n\u003ctable class=\"lti-specs\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eItem\u003c\/th\u003e\n\u003cth\u003eWhat It Does\u003c\/th\u003e\n\u003cth\u003eService Life\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eIQ Controller\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eElectronic brain of the system — connects to spa hardware and processes sensor readings\u003c\/td\u003e\n\u003ctd\u003ePermanent (no replacement unless damaged)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eIQ Sensor\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMeasures chlorine, pH, and salt level hourly; feeds data to the controller\u003c\/td\u003e\n\u003ctd\u003e12 months — annual replacement\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSmart Monitoring System Start Guide\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eComplete setup and operating reference\u003c\/td\u003e\n\u003ctd\u003ePermanent reference\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eThe controller is a one-time purchase — you'll never need to replace it unless it's physically damaged.\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFreshWater Spa Salt\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e— for maintaining salt level around 1,750 ppm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFreshWater Salt System Replacement Cartridges\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e— every 4 months\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVanishing Act Calcium Remover\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e(standard or XL) — fresh fill calcium reduction\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFreshWater Stain \u0026amp; Scale Defense\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e— weekly maintenance to protect the salt cell\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFreshWater pH Up \/ pH Down\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e— for chemistry adjustments the IQ system recommends\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFreshWater Phosphate Remover\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e— phosphate control without sensor interference\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFreshWater Filter Cleaners\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e— instant or deep-soak filter maintenance\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFreshWater Cover Shield\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e— cover protection\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFreshWater Concentrated Chlorinating Granules (dichlor)\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e— for occasional shock during heavy bather load\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eDirections\u003c\/strong\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eConfirm the FreshWater Salt System is running\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ewith a stable daily chlorine residual of 3 ppm. Use 5-Way Test Strips to verify.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower off the spa\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eat the breakers (refer to your spa owner's manual for the specific procedure).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLocate the IQ system installation point\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eon your spa (refer to the included Start Guide for your specific model).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall the IQ Controller\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eper the manufacturer's instructions in the Start Guide.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemove the protective film from the sensor\u003c\/strong\u003e. Do not touch the sensor electrode with bare hands — handle by the housing only.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert the sensor\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003einto the controller and lock per the Start Guide instructions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRestore power\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eto the spa at the breakers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAllow 15–30 minutes for the sensor to calibrate\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ewith your current water chemistry.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVerify IQ readings\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eappear on your topside control panel. If readings don't appear within 24 hours, refer to the Start Guide troubleshooting section or call our service team.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eCompatible Spa Models\u003c\/strong\u003e\u003c\/p\u003e\n\u003ctable class=\"lti-specs\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003cth\u003eCompatible Series (2024 and newer)\u003c\/th\u003e\n\u003cth\u003eNotes\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHot Spring Spas\u003c\/td\u003e\n\u003ctd\u003eHighlife Series\u003c\/td\u003e\n\u003ctd\u003eIQ may be factory-installed; check control panel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHot Spring Spas\u003c\/td\u003e\n\u003ctd\u003eLimelight Series\u003c\/td\u003e\n\u003ctd\u003eIQ may be factory-installed; check control panel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCaldera Spas\u003c\/td\u003e\n\u003ctd\u003eUtopia Series\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eIQ Start-Up Kit comes pre-installed at factory — most Utopia owners do NOT need this kit\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCaldera Spas\u003c\/td\u003e\n\u003ctd\u003eParadise Series\u003c\/td\u003e\n\u003ctd\u003eIQ may be factory-installed; check control panel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eThe IQ system is\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003enot\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ecompatible with:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eHot Spring or Caldera spas built before model year 2024\u003c\/li\u003e\n\u003cli\u003eHot Spring ACE Salt System (different system entirely, used in 2004–2021 spas)\u003c\/li\u003e\n\u003cli\u003eHot Spot, Freeflow, or other non-Highlife\/Limelight\/Utopia\/Paradise spas\u003c\/li\u003e\n\u003cli\u003eSpas without an active FreshWater Salt System\u003c\/li\u003e\n\u003cli\u003eSpas using bromine, biguanide, ozone, or silver ion sanitizer methods\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFreshWater\u003cmeta charset=\"utf-8\"\u003e\u003cspan aria-label=\"®\" role=\"img\"\u003e®\u003c\/span\u003e\u003c!-- notionvc: 4673529c-55e8-4476-9187-9ab7ac225215 --\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"FreshWater","offers":[{"title":"Default Title","offer_id":40835410559031,"sku":"80201","price":429.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2507\/5288\/files\/FreshWater_Smart_Monitoring_System_Start_Up_Kit.jpg?v=1778278962"},{"product_id":"freshwater-iq-replacement-sensor","title":"FreshWater IQ Replacement Sensor","description":"\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eFreshWater IQ Replacement Sensor\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis the 12-month consumable component for the FreshWater IQ Smart Monitoring System — Watkins Wellness's intelligent water care platform built into 2024 and newer Hot Spring Highlife, Hot Spring Limelight, Caldera Utopia, and Caldera Paradise spas. The sensor is the part that does the actual measuring: it samples your spa water every hour and reports chlorine, pH, and salt levels to the topside control panel for real-time guidance.\u003c\/p\u003e\n\u003cp\u003eFreshWater IQ is a meaningful upgrade over the standard FreshWater Salt System. Where the standard system generates chlorine automatically from dissolved salt, IQ goes a step further and\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003econtinuously monitors\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ewhat that chlorine residual actually is — along with pH and salt — and tells you when intervention is needed. No more guessing whether the output level is set right. No more discovering a water care problem days after it started. The spa tells you what's happening, hour by hour.\u003c\/p\u003e\n\u003cp\u003eThe sensor has a working life of approximately\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e12 months\u003c\/strong\u003e. Like any electrochemical sensor exposed to hot, chemically active water, the reference electrodes gradually drift out of calibration as their internal electrolyte equilibrium shifts. By the 12-month mark, accuracy degrades to the point where readings can no longer be trusted, and the topside controller prompts replacement. Swap the sensor, and the IQ system is back to full accuracy for another year.\u003c\/p\u003e\n\u003cp\u003eTwo important clarifications for IQ system owners:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThe sensor is not the salt cartridge.\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThese are two different consumables that the IQ system uses. The\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003esalt cartridge\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003egenerates chlorine (4-month replacement cycle, 3 per year). The\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003esensor\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003emeasures it (12-month replacement cycle, 1 per year).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThe sensor is not optional.\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eWithout a working sensor, the IQ system has no way to read your water and falls back to acting like a standard FreshWater Salt System — losing the entire reason you have IQ.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv class=\"lti-pro-tip\"\u003e\n\u003cstrong\u003ePro Tip:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eWhen your spa's topside control panel displays a sensor end-of-life alert, order the replacement promptly. A sensor that's drifted past calibration doesn't fail abruptly — it gradually reports increasingly inaccurate values, which can lead the system to over-generate or under-generate chlorine. Replacement on schedule means your water care guidance stays trustworthy. Don't wait for the spa to give up — replace when prompted.\n\u003cdiv class=\"lti-pro-tip\"\u003e\n\u003cstrong\u003e\u003c\/strong\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"lti-pro-tip\"\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cspan aria-label=\"®\" role=\"img\"\u003eFreshWater®\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e","brand":"FreshWater","offers":[{"title":"Default Title","offer_id":40842992648247,"sku":"80202","price":105.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2507\/5288\/files\/FreshWater_Smart_Monitoring_IQ_System.jpg?v=1778276937"},{"product_id":"salt-system-maintenance-bundle","title":"Salt System Maintenance Kit","description":"\u003ch3\u003eSalt System Maintenance Kit\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eEverything You Need to Keep Your Salt System Running Perfectly\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eSimplify your spa maintenance with this complete Salt System Maintenance Kit, designed specifically for FreshWater Salt System owners. This convenient bundle includes the three essential products you need to monitor and maintain optimal water quality in your hot tub all year long.\u003c\/p\u003e\u003ch4\u003eWhat's Included:\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFreshWater Salt Test Strips (25 Count)\u003c\/strong\u003e - Monitor salt levels with ease. Simply immerse the strip, swirl three times, and compare against the chart. Perfect for ensuring your salt system operates at peak efficiency.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFreshWater 5-Way Test Strips (50 Count)\u003c\/strong\u003e - Your complete water quality solution. Test Bromine, Chlorine, Alkalinity, pH, and Total Hardness levels with easy-to-read strips that provide accurate, reliable results every time.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFreshWater Spa Salt (10 lb.)\u003c\/strong\u003e - Premium spa salt designed specifically for the FreshWater Salt System. Enables automatic chlorine generation for clean, clear, sanitized water with fewer chemicals and no harsh odors.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eKey Benefits:\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eComplete maintenance solution in one convenient bundle\u003c\/li\u003e\n\u003cli\u003eMore natural-feeling water with no itchy, dry skin or eyes\u003c\/li\u003e\n\u003cli\u003eFewer chemicals needed means less hassle and harsh odors\u003c\/li\u003e\n\u003cli\u003eAutomatic chlorine generation saves time and effort\u003c\/li\u003e\n\u003cli\u003eHelps extend water life up to 12 months between drain and refills\u003c\/li\u003e\n\u003cli\u003eCompatible with FreshWater Salt Systems for Hot Spring and Caldera Spas\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eWhy Choose This Bundle?\u003c\/h4\u003e\u003cp\u003eBased on actual customer purchasing patterns, these three products are the most commonly bought together by FreshWater Salt System owners. Save time and ensure you always have the essentials on hand to maintain pristine, crystal-clear spa water. This bundle takes the guesswork out of water care maintenance, so you can spend more time enjoying your spa and less time worrying about it.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIdeal for:\u003c\/strong\u003e FreshWater Salt System owners who want a hassle-free maintenance routine and the peace of mind that comes with having all the essentials ready when needed.\u003c\/p\u003e","brand":"FreshWater","offers":[{"title":"Default Title","offer_id":42051866034231,"sku":null,"price":52.97,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2507\/5288\/files\/SaltSystemMaintenanceKit.png?v=1767887926"},{"product_id":"complete-water-care-bundle","title":"Complete Water Care Bundle","description":"\u003ch3\u003eComplete Water Care Bundle\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eThe Ultimate Kit for Perfect Spa Water Chemistry\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eTake the guesswork out of spa maintenance with this Complete Water Care Bundle, featuring the four essential products every spa owner needs for balanced, crystal-clear water. This carefully curated bundle provides everything required to test, sanitize, and balance your spa water for optimal performance and comfort.\u003c\/p\u003e\u003ch4\u003eWhat's Included:\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFreshWater 5-Way Test Strips (50 Count)\u003c\/strong\u003e - Your complete water quality monitoring solution. Test Bromine, Chlorine, Alkalinity, pH, and Total Hardness levels with easy-to-read strips that deliver accurate, reliable results every time. Compatible with chlorine, bromine, ozone, and biguanide sanitizers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFreshWater Concentrated Chlorinating Granules (2 lb.)\u003c\/strong\u003e - Powerful sanitation in a convenient size. Formulated with 55% available chlorine, these granules effectively kill bacteria, algae, and harmful contaminants while being gentle on your spa equipment. Perfect for weekly maintenance and superchlorination.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFreshWater pH\/Alkalinity Up\u003c\/strong\u003e - Raise pH and total alkalinity levels when needed. This granular product increases the effectiveness of your sanitizer and ensures comfortable, balanced water. Ideal range: pH 7.2-7.8, Alkalinity 80-120 ppm.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFreshWater pH\/Alkalinity Down\u003c\/strong\u003e - Lower pH and alkalinity levels quickly and effectively. This specially formulated product helps create a more stable and comfortable soaking experience by maintaining optimal water chemistry.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eKey Benefits:\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eComplete water care essentials in one convenient bundle\u003c\/li\u003e\n\u003cli\u003eFull pH control - raise or lower as needed to maintain ideal 7.2-7.8 range\u003c\/li\u003e\n\u003cli\u003eMaintain perfect water chemistry: pH 7.2-7.8, Alkalinity 80-120 ppm, Chlorine 2-3 ppm\u003c\/li\u003e\n\u003cli\u003ePowerful sanitation kills bacteria, algae, and contaminants\u003c\/li\u003e\n\u003cli\u003eEasy-to-use products with clear directions for start-up and maintenance\u003c\/li\u003e\n\u003cli\u003eCompatible with chlorine, bromine, ozone, and biguanide sanitizers\u003c\/li\u003e\n\u003cli\u003eVersatile for pools, spas, and hot tubs\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eWhy Choose This Bundle?\u003c\/h4\u003e\u003cp\u003eThis bundle ensures you have all the core essentials for maintaining pristine water quality—test strips to monitor your levels, chlorinating granules for effective sanitation, and both pH\/Alkalinity Up and Down to keep everything perfectly balanced no matter what adjustments your water needs. Save time shopping and ensure you're always prepared for proper spa maintenance with complete pH control.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIdeal for:\u003c\/strong\u003e New spa owners setting up their water care routine, experienced owners restocking essentials, or anyone who wants the convenience of having all the fundamentals in one purchase—including the flexibility to adjust pH in either direction.\u003c\/p\u003e","brand":"FreshWater","offers":[{"title":"Default Title","offer_id":42051871375415,"sku":null,"price":67.27,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2507\/5288\/files\/CompleteWaterCareBundle_e1d7e44f-dca2-45aa-9f13-93b9d903d987.png?v=1767887954"},{"product_id":"starter-bundle","title":"Starter Bundle","description":"\u003ch3\u003eStarter Bundle\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eThe Perfect Foundation for Your FreshWater Salt System\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan class=\"lti-badge\"\u003eDATA-BACKED BUNDLE\u003c\/span\u003e\u003cspan\u003e The \u003c\/span\u003e\u003cstrong\u003eFreshWater Salt System Starter Bundle\u003c\/strong\u003e\u003cspan\u003e packages the three water care products our customers most consistently buy together at start-up — calcium reduction, water testing, and the salt that powers the system. Whether you've just installed a FreshWater Salt System or you're refilling your spa with fresh water for a new cycle, this bundle gives you everything you need to get from \"tap water in the spa\" to \"balanced salt water generating chlorine automatically\" in one purchase.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cmeta charset=\"utf-8\"\u003e \u003cstrong\u003eWhy we built this bundle:\u003c\/strong\u003e After tracking thousands of FreshWater Salt System orders, we found three products that nearly every successful new salt-system owner buys together within their first 30 days — Vanishing Act calcium remover, FreshWater Spa Salt, and 5-Way Test Strips. Buying them together saves the second order, the second shipping fee, and the wait time of realizing on day 3 that you needed something you didn't have. It's the bundle we wish every new owner had on day one.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch4\u003eWhat's Included:\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cmeta charset=\"utf-8\"\u003e\n\u003ctable class=\"lti-specs\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eProduct\u003c\/th\u003e\n\u003cth\u003eWhat It Does at Start-Up\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFreshWater Vanishing Act Calcium Remover\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRemoves excess calcium from your fill water before the salt system starts running — protects the cell from scale that shortens its life\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFreshWater Spa Salt (10 lbs)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePure spa-grade sodium chloride that brings your fresh fill to the 1,750 ppm salt level required for the salt system to generate chlorine\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFreshWater 5-Way Test Strips\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eVerifies pH, alkalinity, chlorine, bromine, and total hardness so you know your start-up chemistry is right before adding salt\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eKey Benefits:\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eComplete start-up essentials for FreshWater Salt System owners\u003c\/li\u003e\n\u003cli\u003eRemove calcium before it becomes a problem - protect your equipment from day one\u003c\/li\u003e\n\u003cli\u003eSofter, more natural-feeling water for a better soaking experience\u003c\/li\u003e\n\u003cli\u003eAutomatic chlorine generation means less time measuring and adding chemicals\u003c\/li\u003e\n\u003cli\u003eExtend water life up to 12 months between drain and refills\u003c\/li\u003e\n\u003cli\u003eProlong the life of your hot tub and minimize maintenance needs\u003c\/li\u003e\n\u003cli\u003eCompatible with FreshWater Salt Systems for Hot Spring and Caldera Spas\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eDirections\u003c\/h4\u003e\n\u003cp\u003eThe order in which you use these three products matters — using them out of sequence means doing some steps twice. Follow this sequence on day one of your fresh fill:\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eFill your spa with fresh water.\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eIf possible, fill through a\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/shop.leisuretimeinc.com\/products\/freshwater-clean-screen-pre-filter\"\u003eFreshWater Clean Screen Pre-Filter\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eat the hose to remove iron, copper, and tannins before they enter the spa.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest fill water with the 5-Way Test Strips.\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eNote your starting calcium hardness, pH, and alkalinity readings. Target ranges: pH 7.2–7.8, alkalinity 80–120 ppm, calcium hardness 25–75 ppm for salt-system spas.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlace the Vanishing Act calcium remover bag\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eover the heater return per the package instructions. Run the spa's circulation pump continuously for the recommended treatment time (typically 24 hours for the standard size). The resin in the bag will absorb dissolved calcium, lowering hardness toward the target range.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemove and dispose of the Vanishing Act bag\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eafter the treatment time. Retest hardness with 5-Way Test Strips to confirm the level dropped into the target range.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdd the 10 lbs of FreshWater Spa Salt\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eto your spa with circulation pumps running. Allow 10–15 minutes for full dissolution.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVerify salt level\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ewith FreshWater Salt Test Strips (sold separately — needed for ongoing salt monitoring) and confirm you've reached approximately 1,750 ppm.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInitialize the FreshWater Salt System\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eper the system's Start-Up Guide. Within hours, the system will begin generating chlorine automatically.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest chemistry again with 5-Way Test Strips\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eafter 24 hours to confirm chlorine residual is in the 2–3 ppm range and pH\/alkalinity are still on target. Adjust as needed with FreshWater pH Up or pH Down (sold separately).\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch4\u003eWhy Choose This Bundle?\u003c\/h4\u003e\n\u003cp\u003eBased on real customer purchasing patterns, these three products are the most frequently bought together when setting up a FreshWater Salt System. This bundle gives you everything you need for a proper start-up: calcium removal for equipment protection and softer water, test strips to monitor your levels, and the salt that powers your system. Start your spa ownership journey right with this essential trio.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe Bundle Savings Math\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eBuying the bundle saves you both money and the hassle of multiple orders. Compare:\u003c\/p\u003e\n\u003ctable class=\"lti-specs\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eApproach\u003c\/th\u003e\n\u003cth\u003eItems\u003c\/th\u003e\n\u003cth\u003eMultiple Shipments?\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eThe Bundle (this page)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3 products, one box\u003c\/td\u003e\n\u003ctd\u003eOne delivery\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBuying separately\u003c\/td\u003e\n\u003ctd\u003e3 products, 3 add-to-cart actions\u003c\/td\u003e\n\u003ctd\u003eSame day if ordered together; second order if you forget one\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eBeyond the convenience, the bundle is priced below the sum of standalone products — a small discount as a thank-you for being a new salt system owner.\u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cstrong\u003ePro tip: \u003c\/strong\u003eTest BEFORE you add Vanishing Act:\u003cspan\u003e Step 2 (testing fill water) tells you whether you actually need the Vanishing Act, and how aggressively to use it. If your fill water tests at calcium hardness below 75 ppm already, you may not need Vanishing Act at all. If it tests above 300 ppm (extreme hardness from well water or very hard municipal supply), the standard Vanishing Act may not be enough — consider \u003c\/span\u003e\u003ca href=\"https:\/\/shop.leisuretimeinc.com\/products\/freshwater-vanishing-act-xl-calcium-remover\"\u003eVanishing Act XL\u003c\/a\u003e\u003cspan\u003e (3x capacity) instead.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFreshWater\u003cspan role=\"img\" aria-label=\"®\"\u003e®\u003c\/span\u003e\u003c\/p\u003e","brand":"FreshWater","offers":[{"title":"Default Title","offer_id":42052029415479,"sku":null,"price":85.97,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2507\/5288\/files\/FreshWater_Start_Up_Kit.jpg?v=1778279507"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2507\/5288\/collections\/Freshwater_Collection.jpg?v=1718724451","url":"https:\/\/leisuretimeinc.com\/collections\/freshwater.oembed","provider":"Leisure Time Inc.","version":"1.0","type":"link"}