Post by John Palmer on Sept 20, 2014 7:44:15 GMT -8
I would NOT want to know "all of the places", where it could leak, too depressing, LOL! It would be impossible to seal up a travel trailer tight enough to make it float.
You could vent a vacuum cleaner exhaust into your camper and accomplish the same "pressure test". But keep in mind that many/most seals use a lip principle to seal. When you pressurize the inside, you defeat the seal of the lip, and it will appear to leak, even though water would likely not "leak in" through the same lip seal.
The most important thing to remember, is gravity makes water run "downhill". So if you have a leak, you need to solve the problem "up river".