What is a branch vent?

A branch vent serves a specific function within the plumbing system by providing a passageway for air, which is essential for maintaining proper pressure and facilitating the drainage of wastewater. It connects one or more individual vents to a vent stack, which is the larger vertical pipe that allows for the escape of gases and equalization of air pressure throughout the system. By connecting individual fixtures or groups of fixtures to a main vent stack, branch vents help to prevent the siphoning of water from traps and ensure that sewage gases do not leak into living spaces.

This option encompasses the broader application of branch vents, which are versatile in their usage across different installations, making them a critical component in ensuring the overall health and safety of plumbing systems.