How Home Plumbing Systems Work: A Labeled Cross-Section Diagram #252974 (License: Personal Use)

This black-and-white technical illustration shows a typical residential plumbing stack, featuring a vertical waste pipe serving a cellar sink, kitchen sink, and bathroom fixture-all connected via P-traps to prevent sewer gases from entering. A ventilating pipe runs parallel to the waste line, terminating at the roof (garret) to allow air exchange, while a separate entrance for fresh air ensures proper drainage flow. The system terminates at a street sewer via a final trap.

Used on plumbing education pages, DIY home repair guides, or municipal utility resources; targets users seeking to understand basic residential drainage principles or troubleshoot blockages and odors.