SpaPure Spa Alkalinity Up boosts your spa or hot tubs alkalinity level into the optimal 125-150 ppm range, preventing corrosion damage to spa plumbing, surfaces, and equipment. Its granular formula dissolves quickly to start raising your alkalinity, which effectively stabilize your pH level to allow you to accurately balance out your water chemistry. Best of all, a proper alkalinity level gives bathers much more comfortable water quality with virtually no eye or skin irritation. Spa Alkalinity Up is made in the USA to ensure quality, allowing you to buy with confidence.
2 oz per 200 gallons of water as needed.