Science, asked by pratapsinghaarya121, 8 days ago

explain internal DWV system and it's connection??​

Answers

Answered by shananchal616
1

Answer:

In modern plumbing, a drain-waste-vent (or DWV) is part of system that removes sewage and greywater from a building, and regulates air pressure in the waste-system pipes to aid free flow.

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