O.K. what is the experiences and recommendations for piping a shop for the air compressor? I know not to use PVC and M copper. I have heard some say that the black pipe is "dirty" on the inside and will rust overtime providing for some unwanted nasty stuff for your tools and beautiful paint job.
P.S. Len thanks for the CD. I have not had a chance to see the entire program but at least I have a face or maybe that's a beard to know you by.