What is the required cleanout distance for pipes larger than 4 inches in diameter?

For pipes larger than 4 inches in diameter, the required cleanout distance is determined by plumbing codes to ensure that the drainage system can be effectively maintained and cleared of obstructions. The standard for these larger pipes indicates that a cleanout should be installed every 100 feet. This regulation helps to facilitate the maintenance and cleaning processes, allowing access to the plumbing system for rodding or other necessary methods to clear clogs.

The 100-foot requirement stems from the need to provide reasonable access points for maintenance along long runs of larger diameter piping, which are common in commercial and industrial settings. Cleanouts placed at this interval ensure that any potential blockages can be addressed in a timely and efficient manner, thus preserving the function and efficacy of the plumbing system.