I'm getting a pretty sizable amt of salt water in my aft lazzerette, placed rags around the engine exhaust thru hull area and it's coming in there,this even after I used west systems expoxy to seal around the end of the exhaust hose and built up around the area that the hose mares up to. Ran the engine at the dock and saw no water, but after a passage there is a lot of water in the lower area and the rags I placed around the base of the hose are soaked. Place rags above the area and they are dry, so it must be entering the boat thru the joint, but why not at the dock running? Help