Thanks for the reply, Pool Clown. I'll try the thumb thing. If I replace the gasket should I order a new spring or anything else to replace when I take the top of the valve off?
New to forum here. I have an above ground pool that when I backwash and rinse, when I go back to the filter port water continues to leak out of the backwash/waste port. I looked at a schematic of the valve and it shows a spider gasket. Could that be my problem, and if so, is it fairly easy to replace. If it isn't that, then any help would be appreciated.