I have a Hayward EC65, no multiport, just a backwash/drain valve on the bottom of the filter. We just got a good amount of rain the past 2 days and I want to drain my pool a little, only about an inch or so.
Do I lose a little DE every time I drain or vacuum to waste? And if so, should I be replacing DE every time I do that? Never done it in the past and I'm wondering if it's something I should be doing.
Also, one more question regarding backwashing. I've always followed the instructions on the filter to:
1. turn off and Bump.
2. Open backwash valve to drain tank completely
3. Turn on and run pump out to drain for 30 secs
From reading instructions here though, I could skip the tank draining step and just run the pump?