My pool was clear until July 3rd, now it is cloudy and cant see the drains in the deep end. Smells of chlorine. I tried some of the store bught shock, but then I found this excellent forum. I just received my TF-100 test kit, and here is what I came up with after two testings.
FC-85 yes, 85! MY SWG has been running as usual, but the intellichem readout shows chlorine at 635, down from 650 last night. For the past three years it has been working and staying between 650 and 750, and when I would shock it would go to about 800, but not these last two attempts. It moved the number up to 650 for a day.
Not sure how to proceed. Also seeing a little white foam? on the top of the water. I have not backwashed sand filter as the pressure gauge has not moved. Thanks for your help!!!