Hello! I recently went to a local pool store with a water sample and the technician advised me to stop using my chlorinator and chlorine tablets and told me to start using non-cya increasing tablets. So I tried to turn off the chlorinator and the knob won't go all the way to the off position. It gets close, but doesn't actually point to off. Is this okay and does this suffice for my chlorinator being 'off'? Also, even when it's pointed to the off position the chlorinator still filled with water. I had the cap off and turned my pool pump on so I could see what happened in the chlorinator even with it in off position and it still filled up. Is that normal and okay? One of the tubes to the chlorinator also sprung a leak because the tubing is very old and dried out. Now I'm trying to seal it because water is still flowing through there even with it off and I'm leaking water. Any advice would be so appreciated! I just bought this home and I'm a new pool owner too. The pool already had to be drained and acid washed and filled back up and the company that came out put the chlorine tablets in the chlorinator and said everything was fine. Less than two weeks later I go to the pool store and the worker is telling me to shut off my chlorinator immediately and use the other tabs. I just don't want to have a mess of a pool! Thanks!