What does "DWV" stand for in plumbing terminology?

"DWV" in plumbing terminology stands for Drainage, Waste, and Vent. This abbreviation refers to a system designed for the proper disposal of wastewater and the venting of gases from drains. The drainage aspect refers to the pipes that carry away wastewater from fixtures. The waste component specifically deals with the byproducts of water usage, while the vent system is crucial for allowing air to enter the plumbing system, thus preventing the creation of a vacuum that could impede drainage.

This system is vital for maintaining proper flow rates and ensuring that sewer gases do not enter living spaces, contributing to a safe and efficient plumbing infrastructure. Understanding this terminology is crucial for identifying plumbing system components and their functions, which is essential for any plumbing professional.