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vent pipe

noun, Plumbing.
a pipe above a waste pipe or soil pipe that allows gas to escape from the system.
Origin of vent pipe
1855-60 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for vent pipe
  • Every plumbing fixture must have a trap and every trap must be protected with a vent pipe.
  • Sumps used as the suction point in a sub-slab depressurization system shall have a lid designed to accommodate the vent pipe.
  • The vent pipe is typically located against or within a few feet of the building wall.
  • The vent pipe may extend up from the rear of a riser.
  • As the water flows into the tank, the radon gas escapes into the storage container and is then discharged through the vent pipe.
  • Never patch a vent pipe with tape, gum or another substance.
  • All oil tanks must also extend the vent pipe and fit the fill tube with a screw-on tight-fit cap with gasket.
  • Signs of fuel spills or odors around the fuel fill and/or vent pipe.

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