Cyclopedia of architecture, carpentry, and building : a general reference work ... (1907)
American School of Correspondence · Chicago : American Technical Society · leaf 323
and into the closet, the airbetween the traps is extracted, being drawn up through the air-pipeinto the tank. Atmospheric pressure in the room simply presses thewater out of the bowl and upper trap when the pressure below it issufficiently reduced. This water, in motion, added to that of thelower…
Architecture · Building · Carpentry
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