What component of a sewer system helps maintain proper flow by bypassing overfilled sections?

The component of a sewer system that helps maintain proper flow by bypassing overfilled sections is the bypass valve. Bypass valves are specifically designed to reroute sewage flow around sections of the system that may be experiencing excessive flow or blockages. This is crucial in maintaining the overall functionality and efficiency of the wastewater collection system, especially during heavy rainfall or unexpected surges in sewage volume. By utilizing bypass valves, operators can prevent system overloading and potential backups, ensuring that the wastewater continues to flow smoothly to treatment facilities without causing environmental or structural damage.

In contrast, check valves primarily prevent backflow in the system, force mains are designed to transport sewage under pressure and pumps move wastewater from lower to higher points but do not specifically address bypassing overfilled sections.