SpaGuard Total Alkalinity Increaser, 2 lb, Pack of 3, Prevents pH Bounce, Proven Pool Water Balancer, Suitable for Spas and Hot TubsBrand: SpaGuard Features: Raises Total Alkalinity: Our SpaGuard Total Alkalinity Increaser provides spa owners with a simple, effective treatment to combat too low spa alkalinity, which if left untreated can cause corrosion damage, weaken your sanitizers ability to keep your spa clean, and cause skin and eye irritation. Once applied, you can spend more time enjoying you spa rather than maintaining it. Prevents pH Bounce: This product effectively