PristineBlue PristineCheck Calcium Control 64 oz

PristineCheck® is a water prep that gets your pool or spa water ready for the introduction of PristineBlue®. PristineCheck® takes excess calcium from the water and deposits it into the filter. It’s essential to backwash or clean the filter after the use of PristineCheck®. If your source water is high in calcium, we recommend an application of PristineCheck® whenever you add makeup water to the pool or spa.

Application rate: For pools add 2 ounces per 1,000 gallons. For spas add 10 milliliters per 100 gallons. Circulate for 24 hours, then backwash filter or remove and clean cartridge.