POOL CHEMICALS

Everything you need to keep your pool clean and
healthy, all year long.

Chemicals

Pool chemicals are important to keeping your pool water crystal clear and safe to swim in. From bromine to chlorine, pool shock to algaecides and pool clarifiers, In The Swim delivers what you want and what your pool needs.

Chlorine & Bromine

Chlorine & Bromine

AS LOW AS $17.99

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3 Inch Chlorine Tablets, Granular Chlorine, Chlorine Sticks and Bromine at our lowest prices.

Pool Shock

Pool Shock

As Low As Price reduced from $53.94 to $48.55

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Swimming Pool Shock treatments include Super Shock, Non-Chlorine Shock, & Spa Shock

Water Balancers

Water Balancers

As Low As $13.49

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Raise or lower pool pH, Alkalinity, Calcium Hardness with Pool Water Balance Decreasers and Increasers.

Pool Algaecides

Pool Algaecides

As Low As Price reduced from $17.99 to $15.99

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Find Algaecide 60, Algaecide 50, and Super Algaecide for black, yellow, blue or green algae.

Pool Clarifiers

Pool Clarifiers

As Low As $17.99

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Super Clarifier, Super Floc and natural SeaKlear Clarifiers are among the best-selling Pool Clarifiers.

Stain Chemicals

Stain Chemicals

As Low As Price reduced from $24.99 to $19.49

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Stain Free, Stain Away, and A+ Stain Remover are some of the most powerful Pool Stain Removers.

Natural Chemistry

Natural Chemistry

As Low As $19.99

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Metal Free, PhosFree, Pool First Aid, Pool Magic and other enzyme-based natural clarifiers and cleaners.

Chemical Value Packs

Chemical Value Packs

As Low As $24.99

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Pool Chemical Opening, Start-up, Closing and Winterizing Kits for above ground or inground pools.

Chlorine Free Chemicals

Chlorine Free Chemicals

As Low As $21.99

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Nature 2 Cartridges, Pool Frog Mineral Purifiers and Flipping Frog lead the mineral-based pool sanitizers.

Water Testing

Water Testing

As Low As $9.99

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Taylor Pool Water Test Kits, Test Strips as well Saltwater Test Kits for both spas and pools.

Pool Cleaning Chemicals

Pool Cleaning Chemicals

As Low As $19.99

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SeaKlear, StainFree, Acid Magic and Filter Cleaners are featured pool cleaning chemicals.

Other Chemicals

Other Chemicals

As Low As $16.99

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Specialty Pool Chemicals with more than one use like Fix-A-Leak, Mor Septic Tabs and Cell Protect.

In The Swim Knowledge Pool: Pool Chemicals

In The Swim's Dr. Pool

All About Pool Chemicals

Maintaining your swimming pool water with the right pool chemicals as well as keeping your water chemistry in balance are essential when it comes to owning an above ground pool or inground pool. In The Swim is your top source for pool chemicals to ensure your pool stays clean and healthy. Below is a quick breakdown of the many pool chemicals In The Swim has to offer, including chlorine tabs, pool shock, pool algaecides, and more. No matter what pool chemical you're looking for, you'll find it right here at In The Swim!


Pool Chlorine & Bromine

Pool Chlorine Tablets remain many pool owner's first choice for maintaining a chlorine residual for water sanitization in swimming pools. Chlorine tabs are designed to dissolve at a slow, even rate to kill bacteria and control algae. Bromine tablets and chlorinating granular are also available to sanitize pool and spa water effectively.


Pool Shock

Swimming Pool Shock treatments are able to treat pool problems such as algae fast by superchlorinating the water for a clean pool. Our Calcium Hypochlorite Chlorine Pool Shock options, Pool Shock and Super Pool Shock as well as our Sodium Dichlor Granular Chlorine Shock Di-Zap are all great to use for weekly maintenance or super chlorination. Chlorine-Free Oxidizing Shock is a non-chlorine pool shock that will prevent chloramines and enhance the sanitizer efficiency, making it the perfect pool or spa maintenance shock.


Pool Water Balancers

Water Balancers are used to adjust pool water chemistry levels such as lowering pH and alkalinity or raising pH and raising alkalinity to help maintain optimal water quality. Pool Stabilizer increases cyanuric acid levels to help reduce chlorine loss from the sun, helping extend chlorine efficiency. Pool Calcium Hardness Increaser raises the calcium mineral level of the pool water to help prevent damage to pool surfaces and equipment from corrosive water.


Pool Algaecides

Pool Algaecides can be used as an effective treatment to kill algae blooms as well as help prevent algae growth such as green algae, yellow algae, and black algae in swimming pools. Weekly maintenance doses of an algaecide such as our In The Swim Pool Algaecide is great to help control algae growth and assists the chlorine sanitizer against potential pool algae blooms.


Pool Clarifiers

In The Swim Pool Clarifiers help keep pool water sparkling clear by coagulating fine particles and contaminants into larger particles so the pool filter is able to remove them from the pool water. Pool water clarifiers are great to use at pool opening to clear cloudy water fast or as a filter aid for pool filters like sand filters or cartridge filters.


Pool Stain Chemicals

Pool Stain Removers are effective at removing pool surface stains easily, helping to maintain the appearance of your swimming pool. Pool stain preventers such as our In The Swim Stain Away for Swimming Pools are used to keep the pool interior from potential metal staining or calcium scaling on the pool tile perimeter.


Natural Chemistry

Natural Chemistry is the leader in specialty pool water care products. They have many different products from enzymes for breaking down oils and non-living organics, phosphate removers to help prevent algae, and pool sequestering agents to prevent pool stains just to name a few. Some of Natural Chemistry’s popular products include Pool Perfect + PHOSfree, Instant Pool Water Conditioner, PHOSfree, and Metal Free.


Pool Chemical Value Packs & Bundles

In The Swim offers Pool Chemical Kits and Bundles for added convenience and savings for pool owners. Whether you’re opening your above ground swimming pool in the spring, or closing your inground pool for the winter, In The Swim has you covered with the best Pool Opening Kits and Pool Closing Kits for you and your pool.


Chlorine-Free Chemicals

Although chlorine is the most widely used pool sanitizer, there are Chlorine-Free Pool Chemicals available to help provide a more natural swimming experience. Mineral Purifiers can help significantly reduce chlorine usage as well and can be maintained by using Non-Chlorine Pool Shock for a routine oxidizing shock treatment.


Water Test Kits

Consistent and routine water testing is the best thing you can do to ensure the health of your pool water. Using a Water Test Kit or Water Test Strips can accurately read water chemistry levels such as chlorine, pH, total alkalinity, cyanuric acid, calcium hardness, salt, and phosphates. Maintaining balanced pool water will not only keep your water clean and clear, it will also help save on pool maintenance costs!


Pool Cleaning Chemicals

Pool Cleaning Chemicals can be used for a variety of pool maintenance tasks from pool filter cleaning to outdoor deck cleaning. Pool cleaning chemicals can clean surfaces such as pool tile and vinyl liners to help keep your pool looking like new.


Learn More About Pool Chemicals

What chemicals are needed to maintain a swimming pool?

It’s important to make sure you have all the necessary pool chemicals on hand to maintain clean and balanced pool water. Check out our helpful article, What Chemicals are Needed for Pools? to learn more, including what pool chemicals every pool owner should keep in stock.