Thank you gentleman. Just realized something: my present 4 inch buried PVC outlet is set up for surface overflow from the pit.That gave me an oh crap moment until I remembered even though the feed is at the surface, the actual pipe is a good 3 feet down, so when I replace the epdm liner (which has a small leak) I can rig up a surface AND bottom outlet.

If I only had a outlet at the surface a float valve would be a waste of time. LOL

Last edited by Cecil Baird1; 12/17/13 07:12 PM.

If pigs could fly bacon would be harder to come by and there would be a lot of damaged trees.