Earth Science Laboratories, Inc. Pristine Blue (64 Ounce) 2 Pack
PristineBlue, the cornerstone of the system, is applied for control of algae and bacteria. The active ingredient in PristineBlue, copper ions, is bonded with a unique carrier which allows us to introduce enough copper into the water to control both bacteria and algae. PristineBlue is environmentally friendly, EPA registered and even certified for addition to drinking water by NSF International! After an initial dose, youll measure the level of PristineBlue every two weeks and top it off with more PristineBlue . The active ingredient in PristineBlue stays suspended in the water constantly to prevent the growth of algae and bacteria.