In article ,
Ignoramus13229 wrote:

Thanks Ecnerwal. Plumbing pipe is appealing because a variety of
fittings is available at Home Depot, and the result is idiot proof. I
could not grok your suggestions regarding drip removal. I understand
that condensate needs to be removed, but not sure how.

Any horizontal run of pipe should not be horizontal - it should slope -
generally away from the compressor. An air drop (pipe down to a point of
air use) should come off the top of the horizontal line, and extend down
to a tee (where the air is used), and also extend beyond the tee 12-18
inches (or more) to a valve. At the low end (or point) of the horizontal
run, an elebow (or tee) should go off the bottom of the pipe to a
vertical leg with no air use point, but with a drain valve at the bottom.

The default location, and most conventions for piping have the main pipe
high on the wall - this prevents or reduces accidental damage.

--
Cats, Coffee, Chocolate...vices to live by