[theastronaut]

Our compressor at the shop is outside in it's own shed. There's about 30 feet of pipe to bring air inside the shop with a water seperator/drain inside the shop at the lowest point- this is all before air is routed to the rest of the shop. This first drain will catch some water, but not much since the air hasn't had time to cool off enough to condense the vapor out of it. I've got the fridge drier in my stall and it catches about four times more water than the first trap, and that's after its been though the first trap! The air line coming out of the fridge will actually be cold to the touch all the way up to the air reel mounted near the ceiling, cold enough for water to condense on the outside of the lines! Unless the air is cooled enough, the vapor can't be condensed and drained out, no matter how many water traps you have or where they are arranged.