Check your skirts!!! Your fender skirts that is...
For many weeks, I found water pooling on top of the fenders...INSIDE the trailer.
The problem is two fold. One, poor quality clear bathroom type silicon caulk was used to form a seal on the fender skirt. This resulted in no adhesion to the skirt itself. Two, there is no sealent between the fender itself and the fiberglass wall. There are very LARGE gaps found under the fender skirt, where the fender meets the white wall. So when the silicon seal failed, there was no back up. The leak path went right past the skirts thin edge, into the trailer atop the fender, then flowed down into the floor area…and then???
The Gulfstream rep had no issue with me fixing this issue myself, so I pulled the skirts off, removed the silicon, applied OSI Quad Seal clear caulking around each screw hole, reattached the fender skirt, and then applied a nice bead of the OSI Quad around the skirt edge.
Just hours after this was complete, we had days of storms, and no leaks.
http://photobucket.com/visawaterleak