I have a pool with a chlorinator and UV light. I take my water to the pool store to be checked and it's always really low on chlorine. Of course they sell me stuff to get me chlorine back to proper levels which never works. After reminding them I have UV, they said they don't know anything about that. I contend that I shouldn't have high chlorine levels. Would like to hear some thoughts about this. My water is sparkling clear.