Recent content by Clark

I did another OCLT test last night. The loss was just about 0.5 ppm or maybe a little less if I try to be very strict with the color change. I guess 0.5 is close enough. The latest test results: FC 10 CC 0 PH 7.6 TA 60 CH 650 CYA 40 Here are some more pictures of the steps. The first is the...

Here (finally) are the pics of the filters before and after. The first three pics are before and the last is after cleaning. They didn't look as dirty this time. Normally they're a darker brown all over and have more patches of dead bugs/plant matter. After doing some thinking, I've been...

Tell me more about this testing log. What exactly is the correct way to do it? Is it something like test results by date, amount of chemicals added, visual observations, etc?

Good ideas - I'll document the before and after of the filters and begin the SLAM procedure after that. I just wish it could be known what causes a situation like this to pop up suddenly after such a long trouble-free spell. Then I could prevent it next time...

Thanks for the quick responses! When the cloudiness was just starting, I increased the chlorine to 20-22 and held it there for about a week. At that point the pump was also running about 18 hrs per day - sort of a half-hearted SLAM? The chlorine level stayed up there easily but the cloudiness...

Sorry to be making my first post a request instead of a contribution. I've been lurking and learning so much here for a while - thanks for the great forum. The pool in question (details in the signature) gets re-filled with well water that has a CH of around 220. Here's the problem. A few weeks...