Lift Stations Explained
A lift station is a system that moves any sort of clear water or wastewater from a lower elevation to a higher elevation. It begins as a wet well – a large underground pit that gravity pipelines feed into. When there is a determined amount of water or sewage in the wet well, an electronic or float switch will activate a centrifugal pump that sends the contents elsewhere. In sewage situations, the lift station will carry sewage to a treatment center.
It’s often found that wet wells contain multiple pumps in order to handle various flows throughout the day. Secondary underground rooms where technicians can safely enter and service pumps and monitoring systems are known as dry wells, and are typically found near the wet well. If a level switch or pump were to fail for whatever reason, the contents can overflow. Regardless of clearwater or wastewater, this often results in property damage and/or physical injury.
Waterline Controls offers the WLC7000-9100 series for accurate and reliable level control. The WLC sensor is made of stainless steel probes that are low voltage and low current, and will not plate, foul, or degrade in clearwater or wastewater. The functions offered include pump on and off for two different pumps, a high alarm, and power loss indication. They can alternate between two pumps to ensure that both pumps are used equally, and a visible/audible alarm is optional. Lift Station controls and sensors have some specific reqirements you can explore more in depth here.