What type of pump is typically employed in lift station wet wells?

A submersible pump is commonly used in lift station wet wells because it is designed to operate while submerged in the liquid it is pumping. This design allows the pump to be placed directly in the wet well, minimizing the need for additional piping and preventing issues related to suction lift. Submersible pumps are particularly effective in handling sewage and wastewater, as they can efficiently move large volumes of fluid, including solids, without the risk of clogging.

The durability and efficiency of submersible pumps make them ideal for such environments, as they are built to withstand harsh conditions and are often more energy-efficient than other types. The ability to operate underwater allows these pumps to reduce noise and minimizes the risk of exposure to hazardous materials, which is crucial in wastewater management.

In contrast, centrifugal pumps are typically used in above-ground applications where they can draw from a supply or reservoir, and diaphragm and pneumatic pumps are generally used in different contexts—such as for low-flow applications or when dealing with specific types of fluids. These factors further illustrate why the submersible pump is the most suitable choice for lift stations.