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DWV (drain-waste-vent)

The section of a plumbing system that carries water and sewer gases out of a home.

The Complete Real Estate Encyclopedia by Denise L. Evans, JD & O. William Evans, JD. Copyright © 2007 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
The Drain-Waste-Vent (DWV) system consists of pipes which transport water and solid waste from the house, allow for venting of sewer gases, and maintain atmospheric pressure on the system.