I just found a leak in the TC that had been driving me nuts, I could not find the source. I read on another forum about a service that large rv dealers offer, they pressurize your camper put smoke in it and the smoke comes out of anyplace that leaks, on that same site a guy said he was using his leaf blower and an idea went off in his brain, why not try the leaf blower to see if will pressurize the camper. Well it does, I used mine and borrowed a smoke machine from my kids that they use at parties,got it all in place turn on the smoke machine, filled the TC with enough smoke, you could not see your hand in front of your face, turn on the blower, and there it was, the leak. It was behind the awning about 3/4" in from the end. You could not see the hole. So I removed the awning, patch the hole, replace the awning,just today, now will hope for rain. The hole look like it was done with a large flat blade screwdriver driven through the skin of the TC. It rain 3days straight on our last trip 2wks ago, you can't believe how much water came through that hole. Hole size 1/2" long X 3/32" wide. I hope this idea helps with the new camper.
2003 Gulf Stream Cavalier, 29.5' V-10, most bells and whistles. Banks Power Pac System, Auto Mind, Tans Command.