Basement Compressed Air Plumbing
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  I recently added compressed air plumbing to my basement's
  "shop". The "shop"
  is adjoining to the garage, obviously on a lower level than the
  garage. A rubber
  hose leads from the Homemade Air Manifold (see
  its picture here also), to the "bulkhead fitting" (pictured) that I
  TIG
  welded. Inside the basement, it is just 1/4" NPT plumbing
  (pictured). I used
  regular teflon tape for sealing.
  The plumbing includes a shutoff valve near the Homemade Air Manifold (see
  its picture here also), which is in the garage next to the Curtis Compressor, a filter and
  regulator by Wilkerson ($5
  local eBay purchase), and a pressure gauge by Westward (ditto).
  
 I am also including a picture of the Lectroetch AM-15C electric
etcher that has a air motor for automatic operation, which I wanted to
power with this air setup. 
(Click on the thumbnail images to enlarge)
 