Alright I will wait until evening to check chlorine again. I have the HTH 6 from walmart so that is TC . Your saying if it shows higher than what the kit can show I'm good through the night? Should I leave the filter running all night with the salt system running? I have the purifier running now at about 60% on level 2 just to maintain really what I have. The water does look better but I did have to vacuum up what looked like brown stuff scattered all over the floor of the pool this afternoon.