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BioGuard Strip-Kwik 1 Qt. | Pool Filter Degreaser

SKU: 23756BIO
$20.99

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Description

BioGuard Strip-Kwik is a concentrated liquid degreaser that strips oil, grease, suntan lotion, cosmetics, and organic buildup out of pool filters — sand, cartridge, and DE alike. It handles the one kind of fouling that rinsing and backwashing cannot touch.

That distinction is the whole reason the product exists. A garden hose removes dirt and debris. It does not remove oil. Every swimmer brings body oils, sunscreen, hair product, and lotion into the pool, and all of it ends up in the filter, where it coats the media and turns into a sticky binder that traps fine debris and blinds the surface. The result is a filter that reads high pressure and won't come down after a backwash, a cartridge that looks clean but still restricts flow, and water that stays faintly hazy no matter how much clarifier goes in. Owners typically diagnose that as a worn-out filter and buy a replacement. Usually the filter is fine — it's greased.

Strip-Kwik cuts through that oil layer and lifts it off the media. Where competing filter cleaners require an overnight soak, Strip-Kwik's formula does the job in about an hour, which is the difference between cleaning a cartridge on a Saturday morning and having the pool down for a full day. It's manufactured in the USA and works across every common filter type.

Used as regular maintenance rather than as a rescue, it also extends filter media life substantially. Cartridges that get degreased on a schedule last considerably longer than cartridges that only get hosed off, because the pleats never accumulate the hardened oil deposits that eventually make them unrecoverable.

Pro Tip: Know what your clean filter pressure actually is. When your filter is freshly cleaned and the pump is running normally, write the gauge reading on a piece of tape stuck to the filter housing. That number is your baseline. When operating pressure climbs 8 to 10 psi above it, the filter needs attention — not before, and definitely not months after. Owners who clean on a calendar instead of a gauge are either wasting product on a clean filter or running a blinded one all summer and blaming the water chemistry.

Brand

BioGuard®

What's in the Box
  • 1 x BioGuard Strip-Kwik Filter Degreaser, 1 quart (32 fl oz) bottle
  • Full manufacturer label with dilution rates, application directions, and safety information
Key Features

Removes Oil and Grease Backwashing Can't

Targets the specific fouling that water pressure alone won't dislodge — body oils, sunscreen, lotions, cosmetics, and the organic film they leave behind on filter media. This is the buildup responsible for most "my filter won't come clean" complaints.

One-Hour Soak, Not Overnight

The formula works in roughly an hour of soak time rather than requiring the pool to sit idle overnight. For a single-cartridge system with no spare on hand, that's the difference between a morning job and losing a day of swimming.

Works in Sand, Cartridge, and DE Filters

One product covers every common filtration type. Sand filters are treated in place through the skimmer, while cartridges and DE grids are sprayed and soaked outside the tank.

Restores Filter Efficiency and Flow

Clearing the oil layer restores flow through the media, brings operating pressure back down toward baseline, and lengthens filter cycles. Better filtration also means less work for the sanitizer and clarifier — a filter that actually captures fine particulate is doing chemistry's job for it.

Extends Media Life

Regular degreasing prevents the hardened, layered deposits that eventually make a cartridge unrecoverable. Filter elements maintained this way routinely outlast elements that are only rinsed, which is where the product pays for itself over a season.

Concentrated and Economical

The quart is a concentrate. Cartridge and DE cleaning dilutes it four to one, and sand filter maintenance uses 8 ounces per backwash, so a single bottle covers a substantial amount of routine filter care.

Made in the USA

Manufactured domestically under BioGuard's quality standards as part of the brand's cleaning and problem-solver line.

How It Works

Strip-Kwik is a surfactant-based degreaser. Oil and water don't mix, which is exactly why hosing a greasy cartridge accomplishes so little — the water sheets past the oil film without lifting it. Surfactants solve that problem by reducing surface tension and breaking the oil into fine droplets that water can carry away.

The molecules work at the boundary between the two. One end is attracted to oil, the other to water. Applied to a fouled filter, they surround each oil deposit, pull it free of the media surface, and hold it suspended in the rinse water so it flushes out instead of redepositing. That's the entire mechanism, and it's why the rinse step matters as much as the soak — the product doesn't destroy the oil, it mobilizes it so you can carry it out.

In a cartridge or DE filter, the elements come out of the tank and get treated directly. A full-strength spray coats the pleats or grids and penetrates the oil layer, then a four-to-one soak works through what remains in the deeper folds. Thorough rinsing between and after the steps is what actually removes the mobilized grease.

In a sand filter, the media stays in the tank, so the product is introduced through the skimmer and drawn into the bed. It sits with the pump off for an hour, giving the surfactant time to release oil from the sand grains, and then the filter is backwashed to waste. The backwash is the removal step — every bit of grease the product freed is still in that tank until it's flushed out.

Because the mechanism is surfactant chemistry rather than acid chemistry, Strip-Kwik targets oils and organics specifically. It does not dissolve calcium scale or mineral deposits, which require a separate acid-based filter cleaner and a separate step.

Pro Tip: A truly dirty filter needs two different cleaners, in the right order. Degrease first with Strip-Kwik, rinse completely, then treat with an acid-based cleaner if scale is present. Doing it the other way around wastes the acid — it can't reach the mineral deposits through a coating of oil. And never mix the two products or combine them in the same soak. Most cartridges people write off as "worn out" were only ever getting half of a two-part cleaning.

Directions for Use

Dilution and Dosage Reference

  • Cartridge and DE filters, spray step: full strength, undiluted
  • Cartridge and DE filters, soak step: 1 part Strip-Kwik to 3 parts water
  • Sand filter, initial treatment: 1 cup per 100 lbs of filter sand
  • Sand filter, maintenance treatment: 8 fl oz per backwash

Cartridge and DE Filters

  1. Shut off the pump and relieve pressure at the air relief valve before opening the filter housing. Remove the cartridge or DE elements.
  2. Rinse the element thoroughly with a garden hose to clear loose dirt and debris. Work between the pleats.
  3. Using a clean spray bottle filled with full-strength Strip-Kwik, coat the element evenly and completely.
  4. Wait 10 minutes, then rinse thoroughly with a garden hose for a full 5 minutes.
  5. In a large, clean plastic bucket, prepare a solution of 1 part Strip-Kwik to 3 parts water and soak the element for 1 hour.
  6. Rinse thoroughly with a garden hose before returning the element to service.
  7. Reinstall, close the housing, and restart the pump. Note the new operating pressure as your fresh clean baseline.

Sand Filters — Initial Treatment

  1. Remove any chlorine or bromine product from the skimmer. If the pool has a chemical feeder such as a chlorinator or brominator, turn it off by closing the inlet valve before proceeding.
  2. Backwash the filter as you normally would.
  3. Turn the pump off.
  4. Pour the correct amount of Strip-Kwik directly into the skimmer — 1 cup per 100 lbs of filter sand. Check your filter's documentation for its sand capacity if you don't know it.
  5. Turn the pump on just long enough to draw the product into the filter, then shut it off.
  6. Let the filter stand for 1 hour with the pump off.
  7. Set the filter selector to the backwash position, turn the pump on, and backwash until the waste water runs clear.
  8. Do not allow the product to return to the pool. Backwash to waste only.

Sand Filters — Maintenance Treatment

  1. Remove any chlorine or bromine product from the skimmer, and close the inlet valve on any chemical feeder.
  2. Begin backwashing the filter.
  3. While the filter is backwashing, add 8 fl oz of Strip-Kwik directly to the skimmer.
  4. Continue backwashing until the waste water runs clear.
  5. Do not allow the product to return to the pool.
  6. This treatment can be used at every backwash to prevent oil and grease from accumulating in the first place.

Storage and Handling

  • Store in a cool, dry, well-ventilated area, out of direct sunlight and away from freezing temperatures
  • Keep the container tightly closed and clearly labeled
  • Store separately from sanitizers, acids, and oxidizers
  • Keep out of reach of children and pets
  • Use a clean, dedicated spray bottle and soaking container — never one that has held another pool chemical
  • Read and follow all label precautions, first aid, and disposal directions before use

Pro Tip: Buy a second cartridge and rotate them. A spare element costs less than most people expect and completely removes the pressure to rush a cleaning. Swap the dirty one out, put the clean one in, and let the dirty element soak and dry on your own schedule instead of racing a filter that's off-line. Letting a cartridge dry fully between cleanings also makes the next round easier, since dried organic residue releases more readily than wet film. Two cartridges in rotation will outlast two cartridges used back to back.

Specifications
  • Brand: BioGuard
  • Product Type: Liquid filter degreaser and filter cleaner
  • Form: Liquid concentrate
  • Volume: 1 quart (32 fl oz)
  • Manufacturer Part Number: 23756BIO
  • Filter Compatibility: Sand, cartridge, and DE
  • Targets: Oil, grease, suntan lotion, cosmetics, and organic buildup
  • Does Not Remove: Calcium scale and mineral deposits — use an acid-based filter cleaner separately
  • Spray Application: Full strength, 10-minute dwell, then 5-minute rinse
  • Soak Dilution: 1 part product to 3 parts water
  • Soak Time: 1 hour
  • Sand Filter Initial Dose: 1 cup per 100 lbs of filter sand
  • Sand Filter Maintenance Dose: 8 fl oz per backwash
  • Sand Filter Contact Time: 1 hour with the pump off
  • Removal Method: Backwash to waste — product must not return to the pool
  • Suitable For: In-ground and above-ground pools, all surface types
  • Sanitizer Systems: Chlorine, salt chlorine generator, and mineral system pools
  • Country of Manufacture: United States
  • Shipping Classification: DOT-regulated — ground shipping only
Compatibility

Filter Types

  • Cartridge filters — spray and soak treatment with elements removed from the housing
  • DE (diatomaceous earth) filters — spray and soak treatment on grids or elements after removal
  • Sand filters — in-tank treatment introduced through the skimmer, followed by backwashing to waste

Pool Types

  • In-ground and above-ground pools
  • All pool surfaces — plaster, gunite, vinyl liner, fiberglass, and painted
  • Chlorine, salt chlorine generator, and mineral system pools

What It Does Not Do

  • Does not remove calcium scale or mineral deposits. Those require an acid-based filter cleaner as a separate step. Strip-Kwik addresses oil and organic fouling only.
  • Not a water treatment. This product is for cleaning filter media, not for adding to pool water. It should never be allowed to circulate back into the pool.

Important Handling Cautions

  • Remove chlorine or bromine tablets from the skimmer before treating a sand filter, and close the inlet valve on any chlorinator or brominator. Introducing a degreaser into a skimmer that holds sanitizer tablets is a chemical mixing hazard and must be avoided.
  • Never allow treated water to return to the pool. Backwash to waste. Surfactant that reaches the pool causes persistent foaming that then needs its own correction.
  • Do not mix with any other chemical in a bucket, sprayer, skimmer, or feeder. Use a clean spray bottle and a clean plastic soaking container dedicated to this purpose.
  • Check your filter manufacturer's guidance before cleaning specialty or coated media, since some elements carry their own restrictions.

Most products purchased from our online shop within the last 30 days are eligible for return. Please review our return policy to see the list of items that cannot be returned.

Some major items that are non-returnable:

  • Gift cards
  • Electronics
  • Pumps / Motors
  • Hot Tubs
  • Closeouts
  • Fireplaces
  • Electric Fireplaces
  • Massage Chairs
  • See return policy below for full list of non-returnables.

BioGuard® Brand FAQs

What is the BioGuard 3-Step Care System?

It's the brand's core program for traditional chlorine pools, and it reduces routine care to three jobs.Step 1, sanitize— SilkGuard Complete® tabs or sticks maintain a continuous chlorine residual that kills bacteria and controls algae between applications.Step 2, shock— Smart Shock® is applied weekly to oxidize the organic waste bathers leave behind, break apart chloramines, and restore clarity.Step 3, prevent— Algae Complete® stops algae before it establishes rather than fighting it after it blooms. The system works in pools of any size and surface type that circulate 10 to 24 hours per day.

What's the difference between BioGuard and SpaGuard?

They're sister brands from the same water-care company.BioGuard is the swimming pool line. SpaGuard is the spa and hot tub line.The split isn't marketing — pool dosing is calculated for tens of thousands of gallons at ambient temperature, while spa dosing is calculated for a few hundred gallons at 100°F. Pool packaging makes accurate spa measurement nearly impossible, and a pool-sized dose in a hot tub is a serious overdose. Match the product line to the vessel.

Which BioGuard program is right for my pool?

Equipment usually decides it. Pools running a standard chlorinator, feeder, or skimmer application belong on the3-Step Care System. Pools with a salt chlorine generator should be on thesalt pool programs— Mineral Springs® or SaltScapes® — which are formulated around the specific scale, balance, and cell-care demands of a generator. Owners who want no chlorine or bromine in the water at all use BioGuard'snon-chlorine biguanide program, which is a fully separate chemistry with its own sanitizer, oxidizer, and algaecide.

Can I mix BioGuard products with chemicals from other brands?

Basic balancers are chemically generic and generally interchangeable — alkalinity increaser is sodium bicarbonate no matter whose label is on the bucket. The real risk sits withsanitizer programs and specialty additives. Never introduce chlorine or bromine into a biguanide pool; the two chemistries destroy each other and produce cloudy water, gummy filter fouling, and a collapsed sanitizer residual. Also avoid stacking algaecides and clarifiers from different brands, since overlapping actives can cause foaming or staining. And regardless of brand, never combine two products in the same bucket, scoop, or feeder — always add them separately with circulation running between.

What is SilkGuard Technology?

SilkGuard® is a conditioning technology built into BioGuard's chlorinating tabs and sticks. It softens the feel of the water against skin and helps protect pool surfaces and equipment from scale formation, so the sanitizer is doing two jobs at once. SilkGuard Complete® products also carrySunShield® Technology, which shields free chlorine from ultraviolet breakdown. UV loss is the largest single drain on chlorine in an outdoor pool during summer, so protecting the residual directly reduces how much sanitizer you consume over a season.

Do BioGuard products work with salt chlorine generators?

Yes. A salt pool is still a chlorine pool — the generator simply produces the chlorine on site instead of you adding it from a bucket. Salt pools still need balancing, weekly oxidation, algae prevention, and scale protection, and they have one extra demand a standard pool doesn't: the generator cell itself accumulates scale and needs periodic cleaning. BioGuard's salt-specific programs are built around exactly those requirements.Do not skip testing on a salt pool— the automation controls chlorine production, not water balance.

About BioGuard®

BioGuard is a professional swimming pool care line built on a simple premise: pool chemicals work better as a program than as a shelf of unrelated purchases. Most water problems homeowners fight through the summer aren't caused by a bad product. They're caused by good products working against each other, applied out of sequence, in water whose balance was never corrected in the first place. BioGuard's entire approach is organized around fixing that — matched products, a defined order of operations, and a diagnostic process behind the recommendation.

The brand sits under the KIK Consumer Products umbrella alongside its spa counterpart, SpaGuard, and it covers the full range of pool water care: sanitizers, shocks, algaecides, balancers, water enhancers, surface cleaners and problem solvers, salt pool products, and off-season closing chemistry.

Three Programs, One Philosophy

  • Traditional Chlorine — the 3-Step Care System — Sanitize, shock, prevent. SilkGuard Complete® tabs and sticks handle daily sanitation, Smart Shock® handles weekly oxidation and clarity, and Algae Complete® handles algae prevention. Suitable for pools of any size and surface type running 10 to 24 hours of circulation per day.
  • Salt Pools — Purpose-built chemistry for pools with a chlorine generator, including the Mineral Springs® and SaltScapes® programs. Salt pools still generate chlorine, and they still need balancing, scale protection, and cell care — these products are formulated for that specific equipment set.
  • Non-Chlorine Pools — A complete biguanide-based program for owners who want no chlorine and no bromine in the water at all, with its own dedicated sanitizer, oxidizer, and algaecide.

Formulation Technologies

Two proprietary technologies show up across the chlorine line and explain a lot of the brand's reputation. SilkGuard® Technology conditions the water so it feels noticeably softer against skin while also helping protect pool surfaces and equipment from scale. SunShield® Technology protects free chlorine from ultraviolet breakdown, which is the single largest source of chlorine loss in an outdoor pool during summer — sanitizer that survives the afternoon is sanitizer you don't have to replace.

Diagnosis, Not Guesswork

BioGuard is sold through trained specialty dealers rather than mass-market channels, and the brand backs that network with the ALEX® water analysis system. ALEX reads a full water sample — sanitizer, pH, total alkalinity, calcium hardness, cyanuric acid, metals, and more — and returns a sequenced correction plan rather than a generic product suggestion. That distinction matters more than it sounds. Cloudy water has at least six common causes, and the fix for a filtration problem is nothing like the fix for a high-pH problem or a phosphate problem. Testing tells you which one you actually have.