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So after putting my 1981 Revenge 25 in the water the other day I notice there was just a little water in the hold under the cabin floor. There is a bilge plug in there as well. Each day there is a little more water but after a week maybe a couple of cups. I noticed right off it was coming from this big elongated plug not from the bilge plug or the underwater drain that I am guessing was for adding a toilet and pump.
This piece also seems to have what looks like a plastic hose fitting coming from it that I noticed today may have a plug in it (looks like just silicone).
Either way I would like to know what it is for and why it would be leaking. I check the boat every day so not worried but curious. Hate to pull her with such nice weather out.

Thanks and see the attached photo.

Ken

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It’s just one photo without much context/perspective, but that looks to me like a thru-hull fitting for an old depth sounder transducer. The wire connecting the transducer to the depth sounder display has been cut - - so it is no longer in use.

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I appreciate you comments. That is what I assumed it might be. My context/perspective was in the words I used to describe where this fitting is located (cabin floor hold). I am sorry I was not more descriptive.
I just wanted to see if there was a factory fitting I was missing since I have never seen a through hull that was not removed when not used with a boat that has been on a trailer.

Thanks

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The fact that this is leaking is very disconcerting.

Through hull transducer?

I would check the underside of the hull. It needs to be resealed at best or removed and repaired at worst. Leaking water in a foam hulled boat is a big deal.