In The Swim Alkalinity Increaser For Swimming Pools - Raises Alkalinity and Balances pH Levels in your Swimming Pool Water - 100% Sodium Bicarbonate - 25 Pounds Y7320
In The Swim Alkalinity Increaser For Swimming Pools - Raises Alkalinity and Balances pH Levels in your Swimming Pool Water - 100% Sodium Bicarbonate - 25 Pounds Y7320
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In The Swim Alkalinity Increaser For Swimming Pools - Raises Alkalinity and Balances pH Levels in your Swimming Pool Water - 100% Sodium Bicarbonate - 25 Pounds Y7320

Key item features

  • pH Stability: In Swim Alkalinity Increaser maintains pH and chlorine levels, preventing pH swings for stable water chemistry.
  • Skin and Eye Safety: High pH causes skin rashes and low pH stings eyes; this product helps avoid these issues.
  • Refreshing Water: Ensures refreshing pool water, even in hot summers, by maintaining proper alkalinity.
  • Proper Dosage: Maintain alkalinity at 90-120 ppm; add 1.5 lbs per 10,000 gallons to increase by 10 ppm.
  • Critical Balance: Use when pH drops below 7.4 or alkalinity drops below 80ppm to maintain safe swimming conditions.
  • Prevents Scaling: Prevents scales from forming on your pool and equipment by stabilizing pH levels.
  • Safe Ingredient: Made from 100% sodium bicarbonate, a safe substance for pool water treatment.
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Current price is $42.99
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Arrives by Mon, Jun 22
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Sold and shipped by In The SwimPro Seller
4.377080062794349 stars out of 5, based on 3185 seller reviews(4.4)
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4.5 out of 5 stars
stars89 ratings69 reviews
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Showing 1-3 of 69 reviews

May 24, 2025
CharlieH
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Size: 25 lbs
Sold and shipped byIn The Swim
5 out of 5 stars review

Verified Purchase

My pool was quite disgusting when I opened it for the summertime, I had the shock at several times just to turn the water to a normal color. The alkalinity increaser was very necessary after these treatments, and Walmart gave me a great price and a quick delivery for me to be able to swim before the weekend began.

Incentivized Review
Helpful?5GAB7BC9FN9H220208788
May 28, 2025
James S.
5 out of 5 stars review

Seller Verified Purchase

Customer Service

I purchased this item with 2 others. This item failed to ever show up. Called In the Swim they assisted with Fedex in tracking. . . . waited a few days to see if item would show up. Never showed, reached back out to In the Swim and no questions asked they resent the item and it showed up within 3 days. 10/10 experience and pricing. Definitely will buy from In the Swim again.

Review from https://intheswim.com
Helpful?5GAB7BC9FN9H220208788
May 23, 2025
Tonya M.
5 out of 5 stars review

Seller Verified Purchase

Our pool water tends to

Our pool water tends to have a low PH quite often. This alkalinity increaser always get it back in perfect range. It is so easy to use by just broadcasting around the surface of pool with no premixing required. The 50lb bucket is a very good value.

Review from https://intheswim.com
Helpful?5GAB7BC9FN9H220208788