What Is a Sewage Ejector Pump and When to Service It A sewage ejector pump is designed to move wastewater from a basement, pit, or other area where plumbing can’t rely on gravity. Unlike standard gravity drains, these systems “lift” sewage to a higher discharge point—often into a main sewer line or a utility drain—using a pump plus sensors that control when it turns on and off. In many homes, an ejector pump supports fixtures such as toilets, sinks, showers, and laundry that are installed below the sewer line. Because it handles mixed waste and must operate reliably to prevent flooding, it’s important to understand what it is and how to recognize when it needs servicing. How it works Typically, a sewage ejector pump sits in a sealed basin (or “pump pit”) and uses a motor to push wastewater through a discharge pipe. Inside the basin, float switches or electronic level sensors detect rising water. When the water reach ... Read more »
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