Everything this summer has been pretty smooth until today . My water has been crystal clear with many parties and pretty much swimming everyday. I have had the IC40 cranked up to %50 while we have been having lots of groups over to swim. Yesterday was the first day we havent swam in a while. Today I took off the solar cover to a very cloudy pool. So I got out my TF100 and here are my shocking results.
What should I do first!