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! Case of 4 – Oxidizer (Shock) $114.99 $91.99 Add to cart Sale! 1lb Bag of Quick Swim Oxidizer $12.99 $10.99 Read more Sale! 5lb Instant Clear Chlorine Granules $51.99 $43.99 Add to cart Sale! Frog Torpedo Pack 6-pack $249.99 $199.99 Add to cart