I add chlorine/bleach almost daily but every time I test it none registers. I use the colored test strips and if I get nothing with that I use the aquachem liquid test kit that test CL/BR/PH. The PH always comes back normal 7.6 But the CL is at 0. The water looks amazing considering where I was a month ago fighting well water. I tried using the 1" Chlorine tabs in the skimmer to keep the levels up and consistent but it turned the water cloudy. Right now I am adding 3 cups of 8.25% bleach 4-5 times a week in the early morning, the pool also sits out in the sun, should I cover it when not in use which is most of the day the kids don't swim til after 5pm when the sun goes away.