By Jill Wallitschek Lift stations are designed to move sewage from a lower to higher elevation through pumps and pipes. Once pumped to a higher elevation, sewage continues to move through the collection system via gravity to reach the wastewater treatment plant. Utilities typically install one of two types of lift stations. Submersible pump lift stations, also called wet well lift stations, contain the pumps, sewage, and floats all in one vault. Dry well lift stations use two vaults to separate the pump system and wastewater. To learn more about lift station operations, components, sizing calculations, inspections, maintenance, emergency response, and pump selection for both types, check out the U.S. EPA’s Wastewater Utility Operation and Management for Small Communities – Lift Station Overview webcast recording. Learning the theory behind lift station operations, maintenance, and emergency response is an essential component to any wastewater operator’s training, however hands-on experience is also important. While we can’t give you hands on experience in a blog post, the following video offers a real world example of lift station maintenance. In this video, a Minnesota operator demonstrates how to remove debris from a clogged pump at his facility’s lift station. He also overviews the various components on the lift station control panel. Please note that when troubleshooting lift stations you should first be trained in operator safety. Safety topics to review before working with lift stations include lock out tag out, confined space, electrical safety, fall protection, crane safety, and tail gate safety.