In The Swim
Water balance is key
Perfect pH for clear pool, stronger sanitizer.
Choose our Alkalinity Increaser pH Adjuster Stabilizer and more for optimal water balance
Available in additional 2 options
More options from$4499
In The Swim Spa and Hot Tub Maintenance Kit - Complete with Shock Oxidizer, pH Plus and Minus, Stain Away, Defoamer, Water Test Strips, and Spa Sorb KSPAMNT01AZ
4.5 out of 5 Stars. 30 reviews
Shipping, arrives in 3+ days
Available in additional 3 options
Options from$10400– $24791
In The Swim High-Usage Pool Maintenance Kit – Chlorine-Free Shock, Pure Clear Enzyme, Water Clarifier - Crystal Clear Pools - Starter HUMK_Starter
Shipping, arrives in 3+ days
Available in additional 5 options
More options from$2149
In The Swim Pool pH Increaser - Soda Ash to Raise pH Levels
4.6 out of 5 Stars. 126 reviews
Shipping, arrives in 3+ days
Available in additional 3 options
Options from$2149– $7399
In The Swim Super Algaecide For Above Ground or Inground Swimming Pools – Low Odor, Non-Foaming Preventative for Yellow/Mustard Algae in Swimming Pools - 7.1% Chelated Copper – 1 Quart F055001012AE
4.7 out of 5 Stars. 125 reviews
Shipping, arrives in 3+ days
Available in additional 2 options
Options from$2799– $8999
In The Swim Algaecide 60 Plus For Swimming Pools - Non-Metallic, Low Odor, Non-Foaming Algae Bloom Preventative - Chlorine Sanitizer Compatible - 1 Quart Y1300
4.4 out of 5 Stars. 128 reviews
Shipping, arrives in 3+ days
Available in additional 5 options
More options from$2499
In The Swim Alkalinity Increaser For Swimming Pools - Raises Alkalinity and Balances pH Levels in your Swimming Pool Water - 100% Sodium Bicarbonate - 50 Pounds Y7340
4.6 out of 5 Stars. 65 reviews
Shipping, arrives in 3+ days
Available in additional 4 options
Options from$5698– $10923
In The Swim Water Balance & Clarity Bundle - 5Lb Alkalinity Increaser + Pure Clear No Phos 3L ALKPC_5
Shipping, arrives in 3+ days
Available in additional 4 options
More options from$3299
In The Swim pH Reducer For Swimming Pools - Lowers Total Alkalinity and pH Levels - Prevents Cloudy Water. Maintains Water Balance - 90% Sodium Bisulfate - 50 Pounds Y7135
4.5 out of 5 Stars. 33 reviews
Shipping, arrives in 3+ days
Available in additional 4 options
More options from$6458
In The Swim Pool Chemistry Balance Kit - 50Lb pH Reducer + 3L Pure Clear No Phos - Controls pH, Removes Phosphates & Keeps Water Crystal Clear PHRPC_50
Shipping, arrives in 3+ days
Available in additional 2 options
Options from$2399– $4798
In The Swim Super Floc Out, 1 qt. F071001012AE
4.6 out of 5 Stars. 24 reviews
Shipping, arrives in 3+ days
Available in additional 2 options
Options from$2499– $4500
In The Swim Black Algaecide – Eradicates Black Algae in Swimming Pools - Copper Sulfate Pentahydrate - 1 Quart F050001012AE
4.1 out of 5 Stars. 44 reviews
Shipping, arrives in 3+ days
Available in additional 4 options
More options from$4084
In The Swim Pool Chlorine Stabilizer and Conditioner 10 Pound Bag
4.3 out of 5 Stars. 32 reviews
Shipping, arrives in 3+ days
Available in additional 3 options
Options from$3025– $9796
In The Swim Liquid Conditioner – Fast-Dissolving, pH-Neutral Stabilizer for Long-Lasting Water Chemistry Protection - 1 Gallon 62000
Shipping, arrives in 3+ days
current price $36.19
In The Swim Instant Acid for Swimming Pools - F084004048AE -1.5 lbs container (4 Pack)
5 out of 5 Stars. 1 reviews
Shipping, arrives in 3+ days
Available in additional 3 options
Options from$2149– $3600
In The Swim Ultra-Clear 4-in-1 Swimming Pool Clarifier - 1 Quart
4.5 out of 5 Stars. 13 reviews
Shipping, arrives in 3+ days
Available in additional 3 options
Options from$2549– $7999
In The Swim Algaecide 50 For Swimming Pools - Green, Black, and Yellow Algae Treatment for Above Ground or Inground Swimming Pools - 1 Quart F045001012AE
4.4 out of 5 Stars. 16 reviews
Shipping, arrives in 3+ days
Available in additional 3 options
Options from$3499– $9999
In The Swim Algae Clear for Pool Water - Swimming Pool Algaecide
5 out of 5 Stars. 3 reviews
Shipping, arrives in 3+ days
Available in additional 2 options
Options from$2299– $4368
In The Swim Winter Swimming Pool Algaecide - 1 Quart
4.6 out of 5 Stars. 35 reviews
Shipping, arrives in 3+ days
Available in additional 3 options
More options from$2149
In The Swim Clarifier For Above Ground and Inground Swimming Pools - Coagulates Debris To Clear Swimming Pool Water - Increases Filter Efficiency - 1 Gallon F062001002AE
4.8 out of 5 Stars. 15 reviews
Shipping, arrives in 3+ days
Available in additional 2 options
More options from$2149
In The Swim Super Clarifier For Above Ground and Inground Swimming Pools - Improves Filter Efficiency, Clears Cloudy Water - 1 Gallon F061001002AE
4.9 out of 5 Stars. 30 reviews
Shipping, arrives in 3+ days
Available in additional 3 options
Options from$12299– $31059
In The Swim Green to Clean Recovery Kit - Removes Algae for Clear Water, Weekly Sparkle - Starter GTC_Starter
Shipping, arrives in 3+ days
Available in additional 3 options
More options from$14389
In The Swim Mustard Algae Recovery - Defeat Yellow Algae - Simple Routine, Clear Water - Basic MAR_Basic
Shipping, arrives in 3+ days
Available in additional 3 options
Options from$2799– $10636
In The Swim Sparkle Plus Pool Water Clarifier Cube - 6 Ounce F047001012AE
2.5 out of 5 Stars. 6 reviews
Shipping, arrives in 3+ days
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