I've just been having a private conversation with someone else about this topic. I have 20K gallons in Houston. Pool is 6 months old. I keep running out of CL and have been adding bleach. I run the pump 5.5 hours (up from the winter and will probably go to 7-8 hours soon) at 90% and it's still not keeping up. I'm going to try cleaning the cell.

Btw, my cya is about 60.

Robert