What is PristineBlue®'s shelf life?

PristineBlue® stays active indefinitely and can be used from season to season if stored in a closed container at a temperature above 32 degrees Fahrenheit. If PristineBlue® freezes, product separation will occur and it won't be effective against algae and bacteria in your pool. PristineClean and PristineCheck last indefinitely regardless of temperature conditions. Unopened packages of PristinePower will be most effective if used within a year after purchased; opened packages of PristinePower should be stored in a tightly sealed container and used as quickly as possible. Test Kit tablet reagents should be replaced if more than one year old.