SpaGuard pH Increaser - 1.12 Pounds
SpaGuard pH Increaser works by raising the pH level in spa water. Low pH levels in hot tub water can lead to eye irritation, strong chemical odors, and a decrease in sanitizer effectiveness. It can also corrode the metal in the plumbing and filtration system.
Ideally, the pH levels in the water should be maintained between 7.2 and 7.6 as measured by a test kit or test strips.
Sodium carbonate – 100%