a) I know you can use glue sizing (1 part glue, 10 parts water) as a
pre-finish seal on end grain. Can this be done on outside as well,
specifically cedar end grain?

b) any suggestions on how to bleed out a 27 gallon compressor easily
when not using? I jsut leave it pressurized all the time, which I know
is not good for the tank or fittings? Valve is on the bottom, of
course.

Chris