Sodium Bisulfate - pH Down - 50 Lb. Bag sign-subject_Lifeguard/No Lifeguard the combo unit will maximize

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Sodium Bisulfate - pH Down - 50 Lb. Bag sign-subject_Lifeguard/No Lifeguard the combo unit will maximizeThis is a 50 pound bag of Sodium Bisulfate, also known as pH Down. This product lowers pH to an ideal level for swimming and recreation. Helps to prevent eye irritation, cloudy water, and scaling caused by high pH. It also helps chlorine fight bacteria and control algae which keeps your pool looking clear.