So I've found a balance point running the SWG at 40% and the pump 12 hours a day (a seven hour period and a five hour period). FC is 7 to 7.5 every day, pH gently rises from 7.2 to 7.8 over 8-10 days. Pool is crystal clear (thank you TroubleFreePool.com!).
My question - I want to save electricity running the pump. but I also want to maximize the life of the SWG - so am I better off with longer pump run time, or higher SWG setting? 12 hours at 40%, or 8 hours at 60%, or 6 hours at 80% - all produce 4.8 hours of SWG run time.