I think I am going to have to disagree on the use of copper tubing. In
Canada I have only ever seen copper tubing used for RV propane systems.
My 1980 SOB uses copper tubing and I have never had a problem with leaks
or wear. These lines run outside the shell and inside. If the vibration
of the coach is a problem then that is a pretty good vibe and should be
checked out. I would have no problem using copper tubing for the air
system. BTW the copper used is 3/8 for the propane system. My thoughts
not yours. Darren
Canada I have only ever seen copper tubing used for RV propane systems.
My 1980 SOB uses copper tubing and I have never had a problem with leaks
or wear. These lines run outside the shell and inside. If the vibration
of the coach is a problem then that is a pretty good vibe and should be
checked out. I would have no problem using copper tubing for the air
system. BTW the copper used is 3/8 for the propane system. My thoughts
not yours. Darren