Quote Originally Posted by CarlD
You added FOUR CUPS of DE? I'm not surprised it blew into the pool! What were you thinking? I have a 200# Hayward and 1 hp SuperPump and I add less than ONE cup of DE each time I backwash!

Best way to get it out if it's on the bottom is vacuum to waste.
I was going to say, I've never heard of adding more than a cup of DE to a Sandfilter.