[77newell]

Yeah, the finned type dryers reduce moisture in the compressed air but do not eliminate it. After I added the Bendix AD-9 dryer to each of my Newel coaches I never again found water in any tank. I also subsequently plumbed the 120 volt compressor to the inlet of that dryer so that thorough drying would take place. If I used the 120 compressor continuously for more than a week I would start the main engine to force the dryer through a recycle. That worked fine given the low leakage from my air system.