Home / Chemicals / Pool / Chlorine/Bromine / 50lb bag of Sodium Bisulfate (pH Decreaser) $69.99 50lb bag of Sodium Bisulfate (pH Decreaser) quantity Add to cart SKU: AAA-8617 Categories: Chemicals, Chlorine Free, Chlorine/Bromine, Clarifiers/Maintenance, Pool Product ID: 2222 Description Description Used to lower the ph/alkalinity in pool water. Chemicals/Pools/Chlorine & Chlorine Free/ Maintenance Related products Sale! 1lb Bag of Turbo Shock $8.99 $7.49 Add to cart 7.5lb Alkalinity Up $32.99 Add to cart 1lb Bag of Non-Chlorine Oxidizer $12.99 Add to cart Sale! 5lb Instant Clear Chlorine Granules $51.99 $43.99 Add to cart