I thought about black pipe but from what I have been told Copper dissipates heat better....cools air faster....reducing the amount of moisture that has to be removed from air at the dryer. As I remember, the shop that I painted in back in the 80's was also plumbed with copper and spaced out from the wall with chunks of 2x4. The air dryer I bought calls for 3/4 inch minnimum plumbing with maximum at 1 1/4 inch. 1 inch was optimum. I could avoid all this and just use the paint shop at the Malmstrom Air Force Base Auto Hobby shop (6 miles away) but I have three vehicles to paint eventually plus this gives me the reason to plumb my shop and get it set up the way I want it. My son works at a farm and ranch store and gets a 20% discount so I'm leaning towards copper now since they have a huge supply of it. It's his truck we're painting first so I might as well use and abuse his discount. I was hoping to get it done this weekend but spent alot of time working on my oldest sons car so now the plan is to get it done this week for sure.
On a separate note, this is the first vehicle I've painted since the late 90's or so, somewhere in that era anyway. Products have changed alot. I'm looking forward to getting this done, the prep work is about 90% complete and I'm anxious to see if I still have the touch. Will be posting before and after pics soon.....unless it's a disaster.
