David,
The quick method is to simply seal around the outside edge of the port and  
continue sailing. The slower, longer lasting method, is to remove the port 
using  wooden or plastic wedges and putty knives to remove the port. Clean 
all the old  caulk off with acetone and then reinstall the port with a good 
urethane or  neoprene caulk. This is a time consuming repair, as you do not 
want to damage  the surrounding fiberglass, but it will last anywhere from 
ten to fifteen years  depending on the quality of the materials you use.
You can search the archives and I'm sure you will find a more in depth  
description of the process.
The dirty part of the water is coming from the crud that has collected  
behind the port over the years. Things like spider crap, mold and mildew, 
pollen  and even leaves have been found once the port is removed.
 
Rummy
 
 
In a message dated 6/21/2013 3:32:04 P.M. Eastern Daylight Time,  
chsyhkr at gmail.com writes:

one of  the windows above the bench seat in our galley has a very small
leak.   Maybe a teaspoon after a big rain or extended cleaning.

The water is  coming in contact with something that darkens it quite a bit.
I was  planning on removing the flange around the wind,  seeing what  is
there, and resealing as  needed.

Thoughts?


Regards,

David B.  Craft
Greensboro,  NC

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