So while awaiting parts to build my new forge I ran into some issues in the shop. My old (7 yr old) PVC airlines continued to crap out at an unacceptable rate. My compressor went from kicking on once per hour to 4 times an hour, I was chasing leaks like crazy. Finally decided to scrap all the PVC and re plumb with 3/4" copper. Would have preferred 1" copper for the flow rate but the price difference was like a buck per ft! Compromises! The old PVC just got brittle over the years, seems every new little flex (hose pull) would cause a new leak. So here you see my initial condensation manifold in the corner of my 20'x20' garage/shop where the 5hp Quincy compressor normally resides. About 21' of copper condensation lines with twin drains. Absolutely no engineering involved, just seat of the pants. It just has to be better than what I had before! (Which was no condensation lines!) I have another 50 ft of copper to run!
Love to hear any and all inputs on the subject. Might not change anything as I'm half into it at this point but who knows!