Home / Chemicals / Pool / Chlorine/Bromine / 50lb bag of Sodium Bicarb (Alkalinity Increaser) “Sirona Chlorine/Bromine Spa Test Strips – 25 Count” 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! 11lb MPT Extra Chlorine Tablets $119.99 Original price was: $119.99.$99.99Current price is: $99.99. Add to cart Sale! 5lb Instant Clear Chlorine Granules $47.99 Original price was: $47.99.$39.99Current price is: $39.99. Add to cart Sale! 35lb Instant Clear Chlorine Granules $329.99 Original price was: $329.99.$281.99Current price is: $281.99. Add to cart Sale! Box of 12- 1 lb Bags of Rapid Shock – $95.99 Original price was: $95.99.$77.99Current price is: $77.99. Add to cart