Pretty common misconception. If anything this thread shows there is more than one way to skin a cat. Heres a link to a fairly complete rundown of acceptable compressor installation practices that I would recommend reading: https://www.about-air-compressors.com/plumbing/#air-compressor-plumbing-setup-layout-ideas-and-tips
My shop is plumbed with 1" ridged copper tubing. All pitched toward drain legs with drain valves at the bottom. I don't heat the shop when I am not using it, and once I did forget to drain one leg. It froze and burst the pipe. Now I make sure I drain all the drains before leaving if I have been using the compressor. I never get water out of any hose, unless I leave the hose laying on a cold floor. Then I may get some moisture if the conditions are just right. If I hang up the hose on the wall when not using it I never have that problem.
When I was a little feller I saw a WW1 vet paint a car with a Hot Shot Bug sprayer! My neighbor painted his Yellow Peterbuilt in his driveway with a borrowed pancake compressor. Other than a Lizard Trac across the sleeper it turned out great! I have a dedicated spray hose that I hook to a regulator / filter assy I have welded to an old pressure plate. So far so good!
The Jalopy Journal
