What is the term for a pipe branch that leads from a soil, waste, or vent pipe and is closed off by a fitting?

The term for a pipe branch that leads from a soil, waste, or vent pipe and is closed off by a fitting is known as a "Dead End." In plumbing terminology, a dead end refers specifically to a section of piping that does not extend beyond its termination point, as it is capped or plugged at the end.

Understanding this term is essential for proper plumbing installation and maintenance, as dead ends can impact the flow of waste or venting in a system. If a dead end is improperly designed or installed, it could lead to clogs or hinder drainage efficiency.

In contrast, continuous waste represents a system that allows for fluid flow without interruption, while a drain refers broadly to any pipe that carries water, whether waste or otherwise, and domestic sewage specifically pertains to the waste matter generated from households. Each of these terms has its own significance in plumbing systems, but a dead end specifically describes the closed-off branch scenario.