We have Expello automatic air drain valves on our buses. They don't seem to work properly - our new buses have them fail after a year or so, water accumulates in the tanks, and they take out the D-2's. Anyone have any advice about either a) what we might be doing wrong, or b) a better option for drain valves?
Automatic drain valves
Posted - 08/28/2013 : 08:25:42 AM
