I need help!! My chlorine levels aren't even measuring. Ph is about 7.2 and total alkalinity it 200. My water has been cloudy since i shocked it 10 days ago. it seemed to be getting better slowly. my chlorinator is set on 3. I thought my chlorine levels were doing pretty good but i hadn't checked in two days now its not even measuring. i have the tf-100 kit. when i put the R-870 in the test water it doesn't turn pink at all. Should i shock again. I used calcium hypochlorie shock. i'm leaving tomorrow for two days but i have some family that can help if needed.