need suggestions
 

Well my only plumbing blunder i have had is fastening the piping to the back of the stand.I just forgor.Now the plumbing is lifting the sump lid up.I need suggestions on how too clamp this lid down,so i don't hear the waterfall.The lid is about 4 inches wide.

Hey, a picture may help

You could drain the sump and raise it up with a piece of foam( or another piece if you already have one).

did you plumb your sump with hard pvc or soft ?

I'm thinking redo a section of the plumbing with spaflex (flex PVC) that way you have some wiggle to your sump lid (ie can lift it need be, otherwise it's own weight should pull it down).