In pipefitting, what does the abbreviation B.O.P. refer to?

In pipefitting, the abbreviation B.O.P. stands for "Bottom of Pipe." This term is critical when discussing the various dimensions and elevations of piping systems. Understanding the bottom of the pipe is essential for ensuring proper drainage, alignment, and installation of pipes, especially in systems that rely on gravity flow. When installing pipes, knowing the elevation or level of the bottom of the pipe helps ensure that water flow is directed correctly and prevents issues such as blockages or improper drainage.

In practical application, the bottom of pipe measurement is often referenced when determining the required depth for installation or when dealing with alterations in grade. It is a key factor in maintaining the integrity and efficiency of piping systems.