I know there is threads on this but to me this measurement with this kit is not revery good. If I face with back to sun and do measurement and then face sun and do it again I get two totally different answers! So which one is correct????
is there another method that’s not as ambiguous to test CYA? Is there a CYA standard solution u can buy with a KNOWN CYA that we could use to practice with then we would know how to properly measure our pool water???
is there another method that’s not as ambiguous to test CYA? Is there a CYA standard solution u can buy with a KNOWN CYA that we could use to practice with then we would know how to properly measure our pool water???