pH Minus - Sodium Bisulfate (Dry Acid)
ProChem pH MINUS (sodium bisulfate) is a granular form of muriatic acid which is safer, easier and less corrosive. Add to pool/spa to lower pH, maintain balanced water & total alkalinity.
DetailsDosage: 20 oz per 10,000 gallons.
Safer than muriatic acid.
Prevents excess calcium buildup.