Quote Originally Posted by chort55 View Post
are you getting alot of bubbles in the sump after it "flushes"?? If so this is a sign of to much air coming down the drain instead of out the "exaust" hole like it should be doing... which to me is a clear indication that the hole needs to be larger at the top of your standpipe
yea and their large bubbles, kinda like blowing air in a straw in milk.