Is this a storage compartment with a door on the outside of the trailer under the bunk end? or on the side of the trailer.
If the hinge for the bunk door looks like a piano type hinge, those can let water thru. Take a look inside the trailer where the there is a rubber type of material covering the hinge area. Does it look like there are water stains or evidence where water might have leaked in by the molding where the rubber type material attaches to the trailer and the bunk door.
A test would be to take a garden hose, spray down the rear of the trailer. Paying attention to let some water splash down the rear bunk door (closed position). Then go inside to see if there are any signs of wetness.
Our 2005 hybrid had this piano type of hinge. The hinge itself had spacing every 3" or 4". Cleaning the trailer at first I used to spray along that area to get the debris such as leaves or gunk out. Come to realize if I did that too aggressively water was resting on that rubber covering on the inside of the trailer. My newer 2013 hybrid has a solid hinge without any spacing.
Jim, Diane & Robert ~ NE. OH.
2013 Aerolite Hybrid #232 ES
2014 Toyota Tundra
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