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	Pool Chemicals Chlorine & Bromine Winterizing Kits Pool Shock Pool Algaecides Pool Clarifiers More...



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	Pool Owner Guide

Home > Pool Opening & Closing > Pool Opening Chemicals

Pool Opening Chemicals

Open your swimming pool in the Spring with a convenient pool chemical kit. Includes all the pool chemicals you need. Specially formulated and pre-measured to treat your swimming pool water.

Hot

Pool Start-Up Kit with Powerful Chlorine Shock

$23.99

Find ultimate start up pool chemical kits for outstanding value at In the Swim. These pool chemical kits contain all the chemicals you need for a convenient and successful pool opening.

Hot

Ultimate Pool Start-Up Chemical Kit

$69.99

The perfect combination of basic maintenance pool chemicals for one low price. Spring pool chemical value kits include everything you need to ensure a clear & clean swimming pool all season.

Hot

Spring/Summer Pool Chemical Value Kits - Chlorine

$139.99

3 inch chlorine tablets are conveniently individually wrapped and are perfect for use in floaters, skimmers, or automatic feeders. Next day delivery!

Hot

3 Inch Chlorine Tablets

$49.99

Super pool shock is a powerful, fast dissolving and fast acting formula. Containing more chlorine than other pool shock formulas, super pool shock will eliminate algae, bacteria and other contaminants

Hot

Sale

Super Pool Shock

$27.99

Ideal for weekly shock treatments, chlorine free pool shock is safe enough to swim directly after use. As strong as chlorine contained shock in killing bacteria and contaminants.

Hot

Sale

Chlorine-Free Pool Shock

$20.99

Containing more chlorine than other pool shock formulas. Shock will eliminate algae, bacteria and other contaminants. Pool shock is exceptionally powerful, fast dissolving and fast acting formula.

Hot

Sale

$20.99

Make your pool water safer and more pleasant to go swimming. pH Increaser corrects the acidity in your water in a granular form. Great prices and excellent value.

Hot

$14.99

Find pH reducer for excellent value at In the Swim. Granular sodium bisulfate pool pH reducer is safer and less corrosive than muriatic acid and works quickly.

$22.99

Raise total alkalinity of swimming pool water to the ideal range. Alkalinity Increaser pool chemicals are needed when pool total alkalinity drops below 80 ppm.

Alkalinity Increaser

$7.99

Find all the pool water test kit supplies you need including market leading 4 way test kits and replacement test reagents.

Hot

New

4-Way Water Test Kit (Liquid Solution)

$16.99

Find Aquachek test strips for excellent prices and outstanding value. Aquachek pool water test strips are fast, accurate, safe and easy to use. 4-way and 7-way test strips are also available.

Hot

AquaChek Test Strips

$7.99

Affordable and effective, Clear & Perfect swimming pool clarifier helps you to create the perfect swimming environment.

Clear & Perfect

$19.99

Concentrated pool filter cleaning formula quickly dissolves scale, rust, hair and oils from D.E. pool filters, sand pool filters and pool or spa filter cartridges. Effective pool filter cleaners.

Granular Filter Cleaner

$15.99

Interactive pool water testing & pool troubleshooting software computer program. Pool owner's manual with easy step-by-step pool troubleshooting instructions.

In The Swim PC Pool Pal^TM

$14.99

Liquid sand filter cleaner will remove caked-on contaminants to restore filter efficiency. Use 8 oz of sand filter cleaner prior to each backwashing for remarkably enhanced filtration.

Liquid Sand Filter Cleaner

$18.99

Enzyme based pool chemical for pool winterizing. This all natural pool chemical neutralizes organics in the pool water to prevent algae growth under a winter pool cover. Swimming pool chemicals.

Pool Magic & Phos Free

$19.99

Find Natural Chemistry's all-natural Stain Free for great value at In the Swim. Stain Free is a powerful yet safe ascorbic acid-based formula that is ideal for removing tough stains from vinyl pools.

$29.99

Swimming pool water test kit from Taylor checks pool water for chlorine, pool pH, pool acid and pool base demand.

Taylor DPD Test Kit

$44.99

In the Swim is the one internet destination where you’ll find the absolute lowest prices on pool testing kits and replacement Taylor reagents.

Taylor Replacement Reagents

$5.99

In the Swim offers the lowest prices on a wide selection of swimming pool supplies and equipment. Try Ultra-Clear pool water clarifier for an all natural, all-in-one solution to cloudy or dull pool w

Ultra-Clear 4-in-1 Natural Clarifier

$21.99

D.E. filters are becoming an increasingly popular type of filters for use in backyard swimming pools. Trapping even tiniest particles of debris and contaminants while allowing water to pass through.

DE Filter Cleaner

$17.99

Shop the Best Brands in the Pool Business! Visit Our Superstore Pages Below.

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In The Swim®
320 Industrial Drive
West Chicago, IL 60185
1-800-288-7946