[DK on the road]

And what pressure did you start at? The 125, like mine?

Answer; Coach 784 starts the Air comp at like 90 ish and turns off at 105 ish as i remember

One thing I did have to do early on is replace the plastic (ABS?) hoses that Newell installs between the compressors and the manifold. Those were blowing out under heat/pressure, as mentioned earlier in this thread. That plastic tubing is only rated to 120psi or something, to begin with. I didn't know about braided hose, but I just got a 2-foot airline whip on Amazon, and it seems sturdy and has been working fine for a couple years.

Answer; Again on my coach (which may not be original) I have a coil of copper line between the compressor and the water separator, I believe in an effort to help cool down the hot compressed air so the separator can do its job better. I don't have any light weight tubing other than D.O.T. approved air line tubing in my system.