In The Swim Alkalinity Increaser For Swimming Pools - Raises Alkalinity and Balances pH Levels in your Swimming Pool Water - 100% Sodium Bicarbonate - 50 Pounds Y7340

In Swim Alkalinity Increaser maintains pH and chlorine levels. Prevents pH swings, maintaining stable water chemistry. High pH causes skin rashes; low pH stings eyes. Ensures refreshing pool water, even in hot summers. Maintain alkalinity at 90-120 ppm. Add 1.5 lbs per 10,000 gallons to increase by 10 ppm.