Stupid question for all ye experts -
It appears to me that there is a certain black-magic regarding DE and backwashing. In other words, how much DE should I add following backwash?
My initial fill is 7 scoops. After a few hours of runtime, the filter was clogged and I backwash for approx 30 seconds. The sight glass went from brown to white to clear and I stopped. I added two scoops and ran the filter for a few hours until it clogged and repeated the process, adding 2 scoops again.
Is that correct or should I add more DE?? The pool is now clear and the filter output strong.