AquaChek Copper Test StripsAquaChek's Copper test strips provide pool owners with an easy, effective way to test for total copper content, which if too high can create problems such as staining, water discoloration, and corrosion. Once inserted into water, Aquacheck Copper will produce you with a quick, accurate reading of copper levels in your system, which if too high can then be eliminated by many different water treatments.