[Tegra1027]

If you access the 3/8 blue line on the end of the manifold, you could also put a tee into it. If you did that you could air up the coach bypassing the PPV.

Of course you could do the same at the 120V compressor but it’s locked behind the airless slide out.

Thank you. Where is the manifold located?

[Richard]

Passenger side engine compartment. My supply line is red and goes into the back of the manifold.

       

Watch this series of videos. https://www.youtube.com/watch?v=7rnRcyW96m4

And read the first couple of pages of this document, it explains how the leveling system, height control valves, and six pack all work together.  https://hwhcorp.com/ml20635.pdf