I have been reading various posts and this forum has been very helpful. I have gotten my water cleaned and all chemical test are good. However, after I vacuum and backwash the DE returns back to the pool and spa and settles on the bottom. I'm not sure how to vacuum to waste. Here are my specs:
In ground "plaster" pool and spa
Nautilus FNS Fiberglass DE Filter - Two Position Slide Valve to backwash (manual states "do not vacuum pool while backwashing filter")
After I backwash I do put in more DE maybe I shouldn't? Not sure.
Thanks for your response
