Product Review

Helps maintain Calcium Hardness levels between 150-300 ppm. Helps prevents foaming and equipment corrosion Promotes better water balance. Compatible with all sanitizers. Made in the USA USE: Apply to the spa while the water is circulating or as it is being filled 1 ounce (2 tbs) per 500 gallons of spa water will raise calcium hardness level approximately 10 ppm.