Quote:
Originally Posted by Nomadicchefs
Here's some pics of the seam I was meaning. Butyl tape etc
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What you are seeing in those pics is the rubber gasket that sits on the top edge of the metal flange and the plastic vent lid seals against that gasket. That may be where your leak is coming from.
That one definitely needs to be replaced. I had to replace those on my old trailer and I believe I ordered them online somewhere but I just don't have that information available right now. You should be able to get one at any RV parts place.