What is the high water level requirement for an ejector basin?

The high water level requirement for an ejector basin is defined as being at least 3 inches below the invert of the entering piping. This specification helps to ensure that the basin can adequately handle incoming wastewater or sewage, allowing for proper flow and preventing any potential backflow issues. By maintaining this distance, it allows sufficient space for the wastewater to fill the basin without overflowing, ensuring that the ejector pump can function effectively without risk of clogging or compromising the drainage system.

This requirement also plays a critical role in maintaining the hydraulic design of the system, ensuring that the pressure systems work as intended and minimizing the risk of system failure. It’s important for plumbing systems to have established high water level limits, as these parameters are designed to facilitate efficient operation under varying conditions.

In contrast, other options either do not provide adequate space for safe operation or could lead to overflow situations, jeopardizing the overall function of the ejector basin.