Home / Chemicals / Pool / Chlorine/Bromine / 50lb bag of Sodium Bisulfate (pH Decreaser) View cart “39lb NST Prime (Cal Hypo / Non Stabilized Tablet)” has been added to your cart. $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 Quick Swim Oxidizer $12.99 $10.99 Read more Sale! 10lb NST (Non Stabilized Tablet) $80.99 $69.99 Add to cart Sale! 1lb Bag of Turbo Shock $8.99 $7.49 Add to cart Sale! Case of 4 – Oxidizer (Shock) $114.99 $91.99 Add to cart