Yeah, I've drained my compressor and do so frequently.
I've used Dupont Chroma Clear and a few other cheaper brands.
I'm not sure what you mean by "complete system" ...
I have a compressor, water/oil separator, pressure gauge, and gun.
I do follow the spec sheets every time due to my poor memory.
I'm located on the east coast ... yeah, high humidity but I shoot indoors in a climate controlled environment.
Is there something else I need to consider adding to my "system"?
This only happens when shooting clearcoat and only when I wetsand is the solvent pop really apparent (residue gets trapped in the crators).
Pretty frustrating.
I was thinking that me and urethane just may not be compatible.
That's why I ask about Nitro.
Would really prefer to stick with urethane, but I need to get this figured out.