[flookk]

Water can travel a long way from where it entered to where it exits. Finding out where it is getting in can be extremely frustrating. I had a very tiny slow leak in the roof seam on my hybrid that only manifested during heavy downpours or presumably when the snow melted off the roof. The floor kept getting softer and softer and I couldn't figure out where it was coming from. It traveled along a curtain channel and dropped to the floor in the middle of the hitch end.

A common diagnostic method here is to pressurize the trailer and spray it with a soapy solution and watch for bubbles; much like repairing a tire puncture. Your dealer should be equipped to perform that. It cost me $250.00 for the test and the roof repair but was well worth it.