What is the purpose of a cleanout in plumbing?

The purpose of a cleanout in plumbing is to provide access for cleaning blockages in the drainage system. Cleanouts are strategically placed access points within the drainage lines that allow plumbers to easily reach and clear obstructions that may cause backups or slow drainage. They are essential for maintaining the efficiency and functionality of the plumbing system.

When a blockage occurs, using a cleanout allows for effective removal without the need for extensive dismantling of piping, thus saving time and effort. While access for valve maintenance, monitoring water pressure levels, or measuring flow rate are important aspects of plumbing, they pertain to different components or systems within the plumbing infrastructure and are not the primary functions of a cleanout. The design and location of cleanouts focus specifically on providing a means to maintain and ensure the flow through drainage systems.