How far apart should drainage pipe cleanouts be installed in horizontal lines?

The correct distance for installing drainage pipe cleanouts in horizontal lines is 100 feet. Cleanouts are essential access points in a drainage system that allow for maintenance, inspection, and clearing of blockages. Installing cleanouts at this specified distance helps to ensure that they are accessible without requiring the entire length of the pipe to be dug up or otherwise disturbed when performing maintenance.

This distance is derived from plumbing codes and industry best practices, which emphasize the need for accessibility while also considering the typical span that can be responsibly managed without additional cleanout access. By maintaining this distance, property owners and maintenance professionals can efficiently manage the system and address any issues that may arise while keeping the overall system functioning optimally.