What does the term "top-out" refer to during the phases of a plumbing installation?

a.Completing the DWV and water piping through the walls and stubbing out for fixtures, ready for the rough inspection
b.The final cleanup at the end of the job
c.Setting the water heater temperature
d.Pouring the foundation footings

Giải thích

Top-out is the phase where the drain, waste, vent, and water lines are run up through the framed walls and stubbed out for fixtures, completed for the rough inspection. It follows the underground work and precedes trim-out. Planning materials by phase, underground then top-out then trim, keeps the crew supplied at each stage.

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