Layout for a DWV system is typically the first process completed on a project,and other piping systems are installed around the DWV system.

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Quizplus · Accepted Answer

This statement is true. DWV (Drain Waste Vent) system layout is typically the first process completed in a project, as it establishes the placement and sizing of pipes for draining wastewater and venting gases. Other plumbing systems such as water supply and gas lines are then installed around the DWV system.

Layout for a DWV System Is Typically the First Process