Have not written anything in over a week. Sounds like a personal problem, and it was, or still is. Story here? Today I am back to being “Pool Boy” again. Six month cleaning of filter tank is the norm. Last summer I rebuilt the backwash valve stack. It leaked from the top seal. Now, I can’t remove the backwash valves to do a new repair. Pool is running and clean, but, still have the leak. May have to call a guy.