Plumbing Vent System Diagram - Air and Water Flow in P-Trap Configuration #215177 (License: Personal Use)

The image depicts an isometric line drawing of a plumbing drain-vent assembly featuring a P-trap and vertical vent stack. Red arrows trace the wastewater path from fixture to drain, while blue arrows indicate the air inlet path that prevents trap siphoning. The design ensures atmospheric pressure equalization during drainage, preserving the water seal against sewer gases.

Used in plumbing education, building code documentation, or DIY repair guides to explain venting principles; matches user intent seeking visual understanding of P-trap function and vent placement.