My 1979 ODay 25 has leaked when it rained for a couple of years. Only when it rained so I knew it was on top. Today I got it. The anchor locker hose had gotten shorter over the years and had actually pulled the fitting out of the bow. About fifty percent of the water would go out the front and fifty in the bilge. It was running behind the carpet in the bow so you couldn't see it. The carpet never got wet nor did anything else. I reasoned that it had to be from the cockpit drain or the bow because nothing ever got wet inside. It has also rotted the wood that reinforced the bow eye, so I have a little work to do. I will sleep better now that I'm on the right track.