A sump pump is a device used to remove water that has accumulated in a sump pit, typically found in the basement of homes. Its primary function is to prevent flooding and water damage by pumping excess water away from the foundation. The pump activates automatically when water levels rise, ensuring that the area remains dry. Sump pumps come in various types, including submersible and pedestal models. Submersible pumps are placed inside the pit, while pedestal pumps are located above it. Regular maintenance is essential to ensure their effectiveness, especially during heavy rain or snowmelt seasons.