Sodium Bisulfate - pH Down - 50 Lb. Bag sign-subject_Lifeguard/No Lifeguard This item replaces 99958902-DIY

This item replaces 99958902-DIY

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Sodium Bisulfate - pH Down - 50 Lb. Bag sign-subject_Lifeguard/No Lifeguard This item replaces 99958902-DIYThis 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.