PristineBlue is the cornerstone of the system. It is an algaecide/bactericide (nonpublic health) that is added to pools and spas at start up and topped off routinely. Highly effective Algaecide/bactericide (nonpublic health) EPA registered For residential pools in all 50 states NSF ANSI 60 Certified New pool users: add 2 ounces per 1,000 gallonsSpring pool opening/current pool users: test the PristineBlue level and add according to maintenance dosage chart New spa users: add 6 milliliters per 100 gallons, in swim spas add 2 ounces per 1,000 gallonsSpring pool opening/current pool users: test the PristineBlue level and add according to maintenance dosage chart PristineBlue is NSF 60 Certified and gentle on pumps, filters and automatic cleaners. Compatible with: bromine, chlorine and salt water systems Compatible with: plaster, gunite, vinyl tile and composite pools NOT Compatible with: ionizers, mineral inserts, biguanide systems, metal removers, anti-microbial filters and flocculants Please note: Use of Cal-Hypo Shock is NOT recommended.
