Through the hull fittings.

[reelfishin]

I agree, I have to sometimes step back and just wonder how it happened.

[TADTOOMUCH]

Well my four through hulls have three that are truly bonded to the hull type seacocks. The two engine intakes and the AC intake are all seacocks with the fittings mechanically not electrically bonded to the hull. The drain plug in the bow just is a mushroom type and has no seacock attached. My theory there is that its location would not be a place that would typically be in danger of getting struck by something like those near the stern so that is why it was not fitted with a seacock that can be shut off. It is molded into the hull once I got down there with a flashlight. It is just a threaded plug and is used to drain the water out of the bilge in the winter for storage. My mechanic wraps a wire around it every year and he hangs it from the throttle lever to remind him to put it in. They always test run the engine on shore before they set it in the water so I know it will be put back in place before she gets wet each year.

[prowlersfish]

reelfishin , good meeting you today . I have a answer for you on that vent above your exhust . Its not for back pressure like I said. I got to thinking about it its for keeping you from sucking water back in to the exhust as your is under water at rest that why the flaper valve is there .

[reelfishin]

Prowlersfish, My son and I did enjoy the chat we had today. Thanks for coming by and finding the answer for me for the extra vent.
Now that does make sense. I knew it had to be there for a reason.
Hope you can get out soon. I hope to atleast make it back to the marina by this coming weekend. One never knows.