Home / Chemicals / Pool / Chlorine/Bromine / 50lb bag of Sodium Bicarb (Alkalinity Increaser) View cart “Frog Torpedo Pack 6-pack” has been added to your cart. $69.99 50lb bag of Sodium Bicarb (Alkalinity Increaser) quantity Add to cart SKU: AAA-8604 Categories: Chemicals, Chlorine Free, Chlorine/Bromine, Clarifiers/Maintenance, Pool Product ID: 2220 Description Description Used to increase the Alkalinity in Pool Water. Related products Sale! 10lb NST (Non Stabilized Tablet) $80.99 $69.99 Add to cart Sale! 4.5lb NST Prime (Non Stabilized Tablet) $37.99 $34.99 Add to cart Sale! 5lb Turbo Shock $42.99 $36.99 Add to cart 1lb Bag of NST Purify $14.99 Add to cart