Submersible Pump
A submersible pump is designed to operate with both pump body and motor submerged in the pumping fluid. A hermetically sealed and close-coupled motor allow the pump to be completely submerged. Advantages: These types of pumps eliminate the need for a dry vault next to a wet well. Submersible pump stations are also less expensive to construct because only a wet pit is needed, and there's no need for above ground construction to house a control center, just a cabinet above the pit. Disadvantages: Submersible pumps are not readily accessible, therefore they're very difficult to troubleshoot. Typically, the pump fails before a problem is detected. Mechanical seal or cable failure can lead to moisture in the motor housing. When selecting a pump for wastewater applications, consider your plant's priorities. Focused on reliability? Choose a pump that allows for regular inspection. Focused on lower cost? Choose a pump that requires less upfront installation cost. Not...