Thread: Air compressor CFM lost-lenghts of black pipe??.

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I ran 3/4" copper from the compressor to each drop. There is a 3/4" line down both sides of the shop with drops every where I also installed 2 presure gauges one at each end of the shop (shop is 74' long) so I can tell just by looking up whats going on. My drops are 3/4" untill they reach the quick connect. There is a drain at the bottom of each drop and the Q/C is to the side. Personaly I wouldn't use black pipe. I can't imagin what you would be running in a shop that would require a constant PSI and CFM Spray equiptment uses regulators at the gun. I have a seperator by the compressor and I drain the tank regularly. As was mentioned Never put oil in the lines or hoses. Always oil the tools before use. But then again thats just my $.02 worth