HTH pH Down – 7 lbs.
What it does:
HTH pH decrease helps balance the pH in your pool water for healthy swimming.
How much you need:
4 oz. per 10,000 gallons of water until desired pH level is reached.
How to add it:
When the pool water pH value is above 7.8, as determined by the use of a pH test kit, add 4 oz. of HTH pH Down while pump is in operation for each 10,000 gallons of water by distributing it into the deep end of the pool (but not ner metal fittings or the skimmer).
Allow 6 to 8 hours for distribution of the chemical throughout the pool, then recheck the pH.
What it is:
Sodium Bisulfat: 92%, Other ingredients: 8%