Our coach has sat in our driveway continuously since mid-March, except for a couple extended weekend trips, and has not leaked any air at all from the bags that I know of. It just sits there as level as it can get on my sloped driveway. One thing to note is our coach has auto leveling with the 12v auxiliary compressor in the front behind the nose. So, if there is a small leak, then the auto leveling is doing its job. In four years of ownership I have heard the auxiliary compressor run only twice while parked.
