vent pipe

American  

noun

Plumbing.

1. a pipe above a waste pipe or soil pipe that allows gas to escape from the system.

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Etymology

Origin of vent pipe

First recorded in 1855–60

Example Sentences

They think the purpose of the vent pipe is to expel sewer gas outside.

From Seattle Times • Nov. 6, 2023

Here’s a partial list of things that are not a roof: plumbing vent pipe, chimney, skylight, powered roof ventilator, attic or room dormer, and a wall that’s next to and rises above a roof.

From Seattle Times • Jun. 14, 2022

Although rare, it’s possible a vent pipe in an attic or wall might have a crack or an improperly sealed fitting.

From Seattle Times • Jan. 27, 2022

That something might be a chimney, a plumbing vent pipe, a powered attic fan, a turbine vent or a dormer, or it might be where two roof surfaces intersect.

From Washington Post • Jan. 8, 2019

He’d built the frame from long beams, the roof and walls from decking, the chimney from a vent pipe off a lost steamer, one window from a porthole.

From "Beyond the Bright Sea" by Lauren Wolk