Pristine Check 1/2 Gallon (64 ozs.)

PristineCheck® 1/2 Gallon (64 ozs.)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