Thanks for the info Julmer. Unfortunately I've just spent a small fortune on Black iron piping and fittings.....if only you mailed a few days ago
I did wonder to myself if copper piping was up for the job. I thought that soldered joints wouldn't be strong enough to contain compressed air and would eventually leak. I would of rather used copper piping because it cheap and very easy to work with.
I'm now in a dilemma, do I assemble the black iron piping or do I accept a loss and use the 3/4" copper piping I already have in my garage? Hmmmm.
