Run

In plumbing, a run refers to a complete or secondary section of pipe that extends from one fixture, fitting, or appliance to another. Runs can be horizontal, vertical, or inclined, depending on the plumbing layout and the type of system (e.g., water supply, drainage, or venting). The length, diameter, and slope of a run are important factors that influence water flow, pressure, and the effectiveness of the system. Proper installation of runs, including securing, supporting, and joining pipes, ensures efficient operation, prevents leaks, and maintains compliance with plumbing codes.