I went out today to wash the RV. Started the Engine to build up Air Pressure to Slide the Slides in. I Brought both Slides in, and went back outside only to hear a Loud Air Leak at the Back of the Coach at the Bedroom Slide. Looks like I got a Leak! Does anyone know the procedure for replacing or even patching a Air Seal? My Book covers the subject slightly. Do I need to get this fixed before leaving for SF? Its a Air Seal which I know can be removed and replaced, but I don't know the drill.