In The Swim Calcium Hardness Increaser For Swimming Pools - Fast-Acting, Scale Prevention - 94% Calcium Chloride - 45 Pounds Y7220
In The Swim Calcium Hardness Increaser For Swimming Pools - Fast-Acting, Scale Prevention - 94% Calcium Chloride - 45 Pounds Y7220
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In The Swim Calcium Hardness Increaser For Swimming Pools - Fast-Acting, Scale Prevention - 94% Calcium Chloride - 45 Pounds Y7220

Key item features

  • Enhanced Water Quality: Prevents cloudy, dull water by restoring optimal calcium levels, crucial for maintaining a clear and inviting swimming pool.
  • Protective Pool Care: Safeguards pool surfaces and equipment from costly damage such as corrosion and pitting, extending their lifespan.
  • Effortless Application: Features fast-dissolving granules for quick action; simply measure, pour, and circulate for rapid integration into pool water.
  • Precise Hardness Adjustment: Easily raises calcium hardness by 50 ppm per 6 lbs per 10,000 gallons, allowing for accurate and powerful water balance.
  • Versatile Chemical Solution: Highly effective for swimming pools and also functions as an industrial-grade ice and snow melt, offering multi-purpose utility.
  • Optimal Calcium Range: Helps maintain recommended calcium hardness levels between 180-220 ppm, preventing issues from both too soft or too hard water.
  • Scale Prevention: Crucial for avoiding calcium scaling, which can damage pool surfaces and equipment, and lead to cloudy water.
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Current price is $86.99
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4.7 out of 5 stars
stars81 ratings58 reviews
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Showing 1-3 of 58 reviews

May 17, 2026
Stephen
Item details
Size: 45 lbs
Sold and shipped byIn The Swim
5 out of 5 stars review

Verified Purchase

Good product, good value

Arrived early. Chemical pellets were well protected, in a bag inside of the bucket. Added it to the pool per instructions and it did what it was supposed to. Greta value for the money vs other options.

Incentivized Review
Helpful?5S353RU8I0UB876237131
May 13, 2026
Thomas C.
5 out of 5 stars review

Seller Verified Purchase

product is what was expected good value at the sale price and I go it soon enough to broadcast chemical a few pounds per day so that it dissolves without any issues

Review from https://intheswim.com
Helpful?5S353RU8I0UB876237131
Sep 16, 2025
rebecca
Walmart Associate
Item details
Size: 45 lbs
Sold and shipped byIn The Swim
5 out of 5 stars review

Verified Purchase

Great product

I glad that Walmart had this available to order it came in 2 days!! Perfect for my inground pool needs.

Incentivized Review
Helpful?5S353RU8I0UB876237131