[RussWhite]

Let me pile on a bit to Richard's suggestion to get the air leaks fixed. We could all start a list of where we found leaks, but it would end up being every place there is air. Not very helpful. As for leaks at the air filter/separator I have experienced the drain valve on the bottom of mine leaking. This happens after I have the tanks drained for some job and try to air up again. The auxiliary compressor just keeps running and then I remember, check the drain on the filter in the side engine bay access. I just push up on it and voila, it seats and no more leak!

I installed an hour meter on my auxiliary pump. One of the many mods, but one of the best. I live in my coach about 6 moths a year and set a calendar event to record the meter reading. After the replacement of the auxiliary air tank by the generator fan, by compressor time is now less than 10 minutes a day. I don't go crazy looking for leaks. It's just recycled air, but the less I leak, the longer my compressor is going to last and the less the water separator is going to have to work. YMMV