Spa Pure Alkalinity Increaser, 16 oz.

Alkalinity helps keep your pH in the ideal range. Even if pH is in range, low or high alkalinity can create havoc in your spa. Alkalinity doesn't change that often, so it only needs to be tested half as frequently as pH. Features Ultra fast dissolving Compatible with all sanitizers and oxidizing systems Benefits Keeps pH levels stay at consistent levels Increases water comfort Protects spa and equipment Applications Apply to the spa while the water is circulating Use ½ ounce (1 Tbsp) per 200 gallons of spa water to increase total alkalinity by 10 ppm See your dealer for help in decreasing alkalinity in water