yes thats thats where they leak ,I even tried to clean the valve out ,once they leak they the spring is junk .Ray from Raylar told me he has seen this alot.

So I should be looking at number 1 in this drawing for it to start bleeding at higher water pressure.http://www.mercruiserparts.com/Show_...r+Drain+System

What could be helpfull in narrowing down the leak location is to tape a piece of paper towel or similar at the the suspect leak points, make a run and then check the paper for wetness. I have located various leak issues this way.

I thought of that today. Going to try that tomorrow.