Thanks for your reply, I’ll pick up some silicone this evening on the way home. I think that is the only logical way it’s getting in there. I’m betting the valve may have something inside it. I’ll fill in up to the overflow and it seems to draw down even without getting on plane with the aerator and recirculating pump running. I’ll order another valve to change it out, I assumed it should stay up to the overflow, just making sure. Strange thing is it will not leak down when pulled out of the water.