Originally Posted by K72Nova
Sounds like I'll have to give Quincy a call and see if there is a way for me to hook up a 3/4 outlet.
I would be very surprised if a compressor with that capacity had only a 1/2" outlet. The pic appears to have a reducer bushing in a much larger bung. Looks like a nice compressor. I have the IR match to it. It runs most of the time to keep up with my blast cabinet and runs full time with my pressure pot.
The copper will transfer heat faster than pipe. I have 50' of black iron threaded across my ceiling for cooling with 3 drops to drain off water. I had read the galvanized coating was thin inside the pipe and people had problems with it flaking off and clogging fittings so I used the black. It's been in there 8 years and no rust issues...
If the drain valve is still under the tank, buy a street elbow and run it out to daylight. MUCH easier to turn the handle out where you can get at it.