Which statement is LEAST true regarding the direction change of a soil or waste pipe from horizontal to vertical?

In the context of plumbing, particularly when addressing the direction change of a soil or waste pipe from horizontal to vertical, it is critical to focus on the design and efficiency of the fittings used in the transition.

The statement asserting that short quarter bends are typically used is the least accurate. In plumbing practice, long bends are favored because they allow for a smoother transition, which promotes better water flow and reduces the potential for clogs. A short quarter bend can create abrupt changes in direction that increase turbulence and hinder the efficient movement of waste through the pipe, which can ultimately affect drainage performance.

Furthermore, the statements regarding long bends being preferred for efficient flow, the necessity of minimizing service interruptions during installation, and the impact of bend types on drainage efficiency are all grounded in best practices for plumbing system design. These elements are essential for maintaining a well-functioning drainage system, ensuring that waste is effectively moved without unnecessary obstruction or delay.