When installing manholes for building sewers with diameters of 10 inches or more, how far apart must they be at maximum?

When installing manholes for building sewers that have diameters of 10 inches or more, the maximum separation distance between manholes is 400 feet. This spacing requirement is based on standard plumbing and sewer design guidelines, which ensure efficient maintenance and accessibility for inspections and repairs. Proper spacing helps facilitate the flow of sewage, minimizes the risk of blockages, and allows for effective management of the sewer system.

By maintaining a maximum distance of 400 feet, plumbers ensure that manholes remain conveniently located for routine maintenance tasks, such as cleaning and troubleshooting. Keeping this standard reinforces the integrity of the sewer system by allowing easy access when needed and preventing the buildup of materials that could cause issues down the line. Therefore, the correct maximum distance between manholes is set to this specification to promote a functional and reliable sewer infrastructure.