Added DE to sand filter. Now pool is full of DE.

[medvampire]

I did the same thing the first time but I had added but only 2 cups. After trial and error I found I only need 3/4 cup added over a 1 to 2 hour peroid due to blow through of DE through my filter.
Steve

[aquarium]

If you haven't opened the multi-port valve in a while, you might check the spider gasket and see if it allowed that blow-by.

[les_smith]

Well I checked the pool this morning and the pump pressure was holding steady at 15 psi. So, the DE is working. There wasn't nearly as much DE settled at the bottom as there was when I put the DE in. The pump only runs 6 hrs at night, so I'm figuring there was plenty of down time for the DE to settle. I keep vacuum (not to waste) and see if the DE quites settling. Do you guys think that with the amount of DE I added that some will continue to blow by the sand? If not, I'll just wait and let it go until I do my next backwash and then re-do it with a smaller amount of DE.

[ThePoolGuy]

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.