My hobby shop became a full time body shop for one about 15 years ago. I have my compressor mounted in the rear corner of the shop with black iron pipe running straight up to the attic. Then it has an uphill run about 20 feet to the front of the shop where it takes a 90% turn and runs straight 13' the the center between the overhad doors and drops straight down. I added a drop with a drain before the water seperater /filter. Most of the water condenses in the pipe and runs back to the compressor as it is downhill for 25 ft. I drain the tank once a month and get about a 1/2 gal. The drop drain gets opened about once a week and gets a frw tables spoons of water. I don't seem to have to drain the water seperater of filter more than twice a year. I very seldom ever notice any moisture in my air lines. The idead is to get the air cooled and water condensed before it gets to the hose. Running a hose straight from the tank is where you get water problems.
