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Steven J
August 10, 2025
Simple and easy review... great product and the product obviously works. its brings the PH level in my hot tub down. Just as advertised. It helps keep the hot tub levels neutral and dissolves quickly. It works fast and helps alot.No problems with it at all.
Jungle Jim
July 9, 2025
Took about half a tablespoon to lower the pH in a 500 gallon spa from ~ 8 to 7.6, so measure and use judiciously. Add when circulating at a low pump velocity, and run about 30 mins before rechecking pH. If your pH has become more basic over time, say between 8 to 9, suggest you add the recommended amount in 2-3 increments and use your pH test kit to check between additions. USE CAUTION when handling; it is more than 90% sodium bisulfate and dissolves in water to form sulfuric acid. It will dissolve & dilute in the spa water to a safe concentration, but be careful to not breathe the dust, get it in your eyes or let it linger on your skin where it will absorb water in/on your body and damage tissue.
Annette Souza
July 4, 2025
Great product, price was good and delivery of product was quick and right to our front door. No hassles!
Charles J. Wirtz
June 12, 2025
Quality product for a good value.
Hillary Djamoos
June 3, 2025
Works fine for my hot tub
WENDY L WISNER
May 20, 2025
We live in a remote area of Arizona and the cost at local stores are outrageous. This is definitely cost savings.
Hillary Lanza
February 28, 2025
I use a lot of the HTH products, never let down. Good price, does what it says.
Kathleen
January 7, 2025
I buy these a lot for my hot tub and they work great
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