[Nebster]

Is it the same when using the engine compressor vs the electric.

Good question, I don't know.  I can test that today, but...  doesn't the engine compressor supersede the electric?  Do I just have to watch the gauge in the electric compressor bay to see if it is falling at the same rate, or is there some other way to tell?

I just kind of assumed that the engine compressor constantly keeps the whole air system topped off, rather than cycling on and off from time to time.  Not so?

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Leaks can be anywhere obviously, but there is good news for someone who can not get under their coach.  I have found ALL of my non brake leaks  in the compartment bays and inside the coach.  All of my air leaks have been air components or air fittings.  I have replaced all push in fittings with DOT compression style fittings.

Glad to hear that!