What is a sump pump?

A sump pump is a mechanical device used to remove water that has accumulated in a sump basin, commonly found in basements or crawl spaces of homes and buildings. Its primary purpose is to prevent flooding by efficiently pumping out water and redirecting it away from the property.

The sump pump is typically installed in a pit or sump basin, which is a hole or reservoir designed to collect water that may seep into the building’s foundation or accumulate due to natural drainage. When the water level in the sump basin reaches a certain threshold, a float or pressure sensor activates the sump pump.

Once activated, the sump pump uses an electric motor to drive an impeller, which is a rotating device with vanes or blades. The impeller creates a centrifugal force that pushes water towards the pump’s outlet pipe. From there, the water is directed away from the building’s foundation, usually through a discharge pipe that extends outside or into a designated drainage area.

Sump pumps are essential in areas prone to heavy rainfall, high water tables, or properties with inadequate drainage systems. They help prevent water damage to basements, foundation issues, and the growth of mold and mildew. Sump pumps are typically powered by electricity but may also have battery backup systems to ensure their operation during power outages, which are common during severe storms or flooding events.