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HTH 52040B Swimming Pool Care Shock Ultra, Swimming Pool Chemical, Cal Hypo Formula, 1lb (6 Pack)

40.72

Save 15%

HTH 52040B Swimming Pool Care Shock Ultra, Swimming Pool Chemical, Cal Hypo Formula, 1lb (6 Pack)

4.6

200+ bought in past month

Highest ranking 101

8 comments

$40.72

Save 15%

· BENEFIT: Use this all-in-one powerhouse pool shock to increase chlorine levels, prevent bacteria, algae, stain, and scale, reduce skin and eye irritation, improve filtration, and soften your swimming pool water quickly and easily · BENEFIT: Use this all-in-one powerhouse pool shock to increase chlorine levels, prevent bacteria, algae, stain, and scale, reduce skin and eye irritation, improve filtration, and soften your swimming pool water quickly and easily · VISIBLY BRILLIANT SPARKLE: This Cal Hypo based formula sanitizes without adding cyanuric acid (CYA) to prevent overstabilization or chlorine lock · VISIBLE BLUE ACTION: This built-in feature lets you know the product is working · COMPATIBLE WITH ALL SWIMMING POOLS: This product is great for all pool types including vinyl-lined pools and saltwater systems

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Reviews From
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Tom D.Reviewed in the United States on September 12, 2024

Several times I ran into cloudy water issues with my pool (mostly when adding phosphate removers) and struggled to get the water to clear up. Each time I resolved it almost instantly by adding 2 pouches of this shock (to a pretty large inground pool). I suspect the water clarifier it contains helps, but does anyone really understand pool chemistry?

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Sharon GoldschmidtReviewed in the United States on June 26, 2024

Works great the pool looks wonderful.

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Jeannine GrayReviewed in the United States on August 24, 2024

Clean filter first, then sprinkle, I wait a bit then turn filter on. Love it!

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JNReviewed in the United States on July 20, 2024

I purchase this for my pool which is salt water, just note this time of shock may cause faster build up in the salt cell so make sure you check the sell for clumps and clean out when needed. 4 1/2 if i could because they should really notify you on that.

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Elizabeth (Liz/Liza)Reviewed in the United States on August 16, 2024

Great product when cleaning your pool

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DaveReviewed in the United States on September 10, 2024

Although it is not recommended we use this in our hot tub spa. Just adjust the amount to allow for the smaller pool. Like the product keeps the water clear. Once the pH was balanced this product seems to maintain everything well.

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JodieReviewed in the United States on October 24, 2023

One of these every couple weeks and you pool will maintain its balance.

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joe loopReviewed in the United States on July 3, 2024

It works!