Took me about 1 year of part time playing around with all the air system to fix most of my leaks. To date I have replaced all air bags and changed fittings to compression from push in, changed all brake chambers, Camper Joe changed all Norgren's and again changed all push in fittings to compression's, replaced valve on horn, replaced PSI regulators on generator air bags, replaced belt air bags on engine, replaced brake relay valve's, replaced directional valve for air sliding door to bedroom, changed all push in fittings on front bulkhead to compression.

In the process of trouble shooting, I installed ball valves to turn off the driver's air seat, air horns, sliding floor at entry, sliding door to bedroom, air bags for generator, and aux air supply.

End result was/is brake system will hold air in storage for a month and a half. Aux air WAS holding air up to 18-20 hours. The aux air is back to leaking down in a 4-6 hour time frame, even with all the various aux air feeds turned off with the ball valves I installed.

I have kind of excepted there will be leak downs in the aux system. Maybe someday when I get bored I will go back at it and try to find the remaining aux leaks

Chuck