Hot Tub Serum Mineral Purifier | Swim Spa Cartridge

• 1 x Hot Tub Serum Turbo Mineral Purifier — Swim Spa (mineral purifier cartridge for swim spas; lasts up to 4 months)

• Sized for swim spas — rated for the larger water volume a standard purifier can't cover
• Cuts chlorine/bromine use — minerals do part of the work, so you dose far less sanitizer
• Softer, gentler water — less harsh on skin and eyes, with less chemical smell
• Protects your swim spa — helps reduce scale buildup and corrosion on equipment
• Lasts up to 4 months — natural mineral purification the whole season
• Effortless — drops into the filter housing; no strings, hooks, or daily dosing

The cartridge is packed with silver and copper. As swim spa water circulates through the filter housing and past it, the water picks up a controlled, slow release of these minerals: silver is a proven antibacterial, and copper fights algae. Together they create an environment that's hostile to microbial growth, doing a share of the sanitizing that chlorine or bromine would otherwise handle alone.

That slow-release design is why one cartridge lasts up to four months — and why it's so easy to use, dispensing the right amount automatically every time. Since the minerals reduce (but don't replace) your sanitizer, you keep a low residual in the water and add a weekly oxidizer shock to burn off organic waste and keep everything clear.

Pro Tip: Replace the cartridge every time you drain and refill. A mineral purifier's life and your water-change schedule line up naturally — both run about three to four months — so swapping in a fresh cartridge with every new fill keeps you on an easy rhythm and ensures the minerals never run out mid-cycle. Mark the date on your calendar so you don't lose track.

Balance your swim spa water to the manufacturer's specifications before use, and maintain a low sanitizer residual at all times.

1. Install: Simply drop the mineral purifier inside the filter housing (or filter cartridge, basket, or filter well). No support sticks, string, or hooks are needed. To avoid restricting flow, don't wedge it where it blocks water movement — use the filter well if needed.
2. Balance: Adjust your water to proper levels (pH, alkalinity, and calcium hardness) and keep a low sanitizer residual in the water.
3. Shock after use: After each swim spa use, add 1 tablespoon of oxidizer shock (potassium peroxymonosulfate) per person, per 250 gallons of water.
4. If water becomes cloudy, continue to use your current sanitizer as directed until it clears.
5. Replace the cartridge after 4 months, or whenever you drain, clean, and refill the swim spa.

Pro Tip: Don't skip the weekly oxidizer shock. The minerals handle bacteria, but they don't burn off the oils, sweat, and organic waste bathers leave behind — that's the oxidizer shock's job. Pairing the mineral purifier with a regular non-chlorine shock is what keeps a high-volume swim spa not just sanitary but genuinely clear and fresh.

• Brand: Hot Tub Serum (Serum Watercare)
• Product Type: Mineral purifier cartridge for swim spas (sanitizer enhancer)
• Active Minerals: Silver and copper
• Action: Reduces bacteria, softens water, helps protect equipment from scale and corrosion
• Sized For: Swim spas and larger-volume units (bigger capacity than the standard hot-tub purifier)
• Lifespan: Up to 4 months
• Sanitizer Reduction: Allows a reduced residual (about 0.5 ppm chlorine or 1 ppm bromine)
• Installation: Drops into the filter housing, cartridge, basket, or well — no strings or hooks required
• Weekly Care: Add 1 tbsp oxidizer shock (potassium peroxymonosulfate) per person per 250 gallons after use
• Compatible Systems: Chlorine, bromine, ozone, UV, and salt; works with non-chlorine shock
• Pairs With: Swim Spa Serum (weekly biofilm prevention)
• Note: Contains copper — keep water balanced (avoid low pH) to prevent staining
• Replace: Every 4 months or at each drain-and-refill
• Shipping: Standard ground; not classified as a hazardous material

The swim spa Turbo Mineral Purifier is compatible with chlorine, bromine, ozone, UV, and salt systems — it enhances whatever sanitizer you already run, letting you use less of it. It works with non-chlorine (oxidizer) shock, too.

It's designed to drop into most swim spa filter housings, cartridges, or filter wells. You'll still want your pH and alkalinity balancers and a reliable test kit or strips to keep the water in range and confirm your (now lower) sanitizer residual. It pairs naturally with Swim Spa Serum for weekly biofilm prevention. One note for mineral systems: because copper is present, keep your water balanced and avoid low pH, which can encourage copper to stain surfaces.