HTH™ Pool Care pH Down

HTH™ pH Down is a sodium bisulfate pool pH decreaser that lowers high pH back into the safe 7.2-7.6 range. Prevents cloudy water, scaling, and eye irritation Target range: 7.2-7.6 Broadcast over deep end with pump running. Never pre-dissolve Wait 4-6 hours after shocking before adding Safe for vinyl-lined, fiberglass, concrete, and saltwater pools Show more