Home / Chemicals / Pool / Chlorine/Bromine / 50lb bag of Sodium Bicarb (Alkalinity Increaser) “4.8lb 3″Chlorine Tablets” has been added to your cart. View 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! 25lb 3″ Chlorine Tablets $174.99 Original price was: $174.99.$149.99Current price is: $149.99. Add to cart Sale! 5lb Turbo Shock $46.99 Original price was: $46.99.$39.99Current price is: $39.99. Add to cart Enzyme Clarifier (Enzyme for Pools) $32.99 Add to cart Sale! 4.8lb 3″Chlorine Tablets $49.99 Original price was: $49.99.$44.99Current price is: $44.99. Add to cart