DE in sand filter

[larry2338]

Thanks for the replies. The flow from the returns is excellent. 16x32 IG vinyl SWG with 4 return outlets. I think the high pressure is simply the pump being oversize by a factor of at least 2x. I've wondered about channeling in the filter but doubt that I'll check that this year. I'm going to add DE and see how it works. Thanks again.

[Poconos]

In case you didn't see it in other posts when you add the DE do it slowly, maybe 1/2 or 1 cup at a time and give it 20 minutes or so for the pressure to stabilize. Seems to take some time. Once you're calibrated you can chuck in the right amount at once after backwashing.
Al