Home / Chemicals / Pool / Chlorine/Bromine / 50lb bag of Sodium Bicarb (Alkalinity Increaser) View cart “1lb Bag of Non-Chlorine Oxidizer” 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! Box of 12- 1 lb Bags of Rapid Shock – $89.99 $62.99 Add to cart Sale! 20.6lb NST (Cal Hypo / Non Stabilized Tablet) $139.99 $118.99 Add to cart Sale! 5lb 1″ Chlorine Tablets $57.99 $54.99 Add to cart Sale! 65 lb Turbo Shock $411.99 $365.99 Add to cart