What is the purpose of scouring velocity in a sewer system?

The purpose of scouring velocity in a sewer system is focused on preventing the deposition and buildup of solids. Scouring velocity refers to the minimum flow velocity that is necessary to keep suspended solids in motion and to ensure that they do not settle at the bottom of the sewer pipes. If the flow velocity is too low, sediments and other solids can accumulate, leading to blockages, unpleasant odors, and potentially harmful conditions for the sewer system. By maintaining an adequate scouring velocity, the sewer system can effectively transport wastewater without the risk of solid buildup, ensuring overall operational efficiency and reducing maintenance needs.