Tracking a leak in a new keelboat - All Catalinas

[C22Reflections]

I posted this to the 320 forum, but thought it might be worth a wider trawl - We have a small but infuriating leak - a gallon or two a week - in a 320, since new. The leak is saltwater and we have had the boat out of the water and have checked the keel to hull joint and keelbolts, and the through hull fittings. Anyone got any ideas or similar experiences? We're suspecting something going on in the engine's cooling system but not sure.

[PalmettoSailor]

Originally Posted by C22Reflections

I posted this to the 320 forum, but thought it might be worth a wider trawl - We have a small but infuriating leak - a gallon or two a week - in a 320, since new. The leak is saltwater and we have had the boat out of the water and have checked the keel to hull joint and keelbolts, and the through hull fittings. Anyone got any ideas or similar experiences? We're suspecting something going on in the engine's cooling system but not sure.

Stuffing box maybe?

[CaptainForce]

Is you bilge pump effluent just an inch or two above the waterline? When your vessel rocks with waves or wake can you be taking in "sips" of water with each roll? Do you have an anti-siphon loop on the bilge effluent? I had this water source some years back and made a simple fix. 'take care and joy, Aythya crew