First off , I don't have nearly the knowledge a lot of folks on this forum have, but with tfp as my resource how can I go wrong? I do have lots of friends with pools and feel like I can never talk pool care with them. What do you say to someone when they tell you they keep their Cl. Levels between 1-2? And on top of that don't know or care to know what cya even is? You guys must of ran into this before when talking with say neighbors at a party. I don't know anyone else who maintains there pool with these methods but I just listen, don't even want to tell them I keep Cl levels as high as 7.