air admittance vents

A form of air admittance vent — a mechanical sewer vent that allows air to enter into the sewage system but does not allow exhaust of sewer gases, to aid the flow of sewage by providing air behind water, where a standard vent stack to atmosphere is not possible, by drawing in interior air but keeping harmful sewer gases contained.

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Meanings

noun
  1. pluralplural of air admittance vent
Cite this entry
APA

air admittance vents. (n.d.). In WatkinsX Dictionary. Retrieved November 5, 2026, from https://dictionary.watkinsx.com/word/air%20admittance%20vents

MLA

“air admittance vents.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/air%20admittance%20vents. Accessed November 5, 2026.

Chicago

WatkinsX Dictionary, s.v. “air admittance vents,” accessed November 5, 2026, https://dictionary.watkinsx.com/word/air%20admittance%20vents.

Source: air admittance vents on Wiktionary, CC BY-SA 4.0.