[FED 387]

SEAN--ditto on Plastic stuff--- I know guys that try to plumb their garages with black or galvanized plumbing/gas pipe and put in excess of 175-200 maybe more pounds thru it ---suicidal!!!!--- I'm no engineer but there are alternatives to do it safely--keyword here safely--- if you feel that galv/black pipe will safely work at the 125-150 pound range fine just don't get carried away with higher pressures--You seem to know so I respect that but some guys have a 60 gallon Sears oilless compresser and others have a big humongeous2 stage 5 HP 150 gallon Ingersall Rand industrial compresser--I tend to lean to the conservative side on things like this--FED387