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re: Help - Boat Corrosion at Drain Plug

Posted on 7/21/23 at 4:36 am to
Posted by ultralite
Member since Feb 2013
106 posts
Posted on 7/21/23 at 4:36 am to
Yes, looks like galvanic corrosion from dissimilar metals.

Remove, clean up, and have someone weld in an NPT collar, use an aluminum plug.

If that will take too long, remove and put a stainless steel version of the same type of plug.

Do you have bottom paint on this boat?
Posted by farad
Member since Dec 2013
9859 posts
Posted on 7/21/23 at 5:27 am to
that type of plug assembly is what I see on fiberglass boats...
Posted by CajunSportsman
Baton Rouge
Member since Aug 2011
135 posts
Posted on 9/5/23 at 10:26 pm to
Sorry for the late reply, yes, it is a Cajun Special and factory painted hull. Seems to be a brass fixture with a brass plug so I am not understanding the dissimilar metal posts(?)
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