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 two main types: submersible and pedestal. Submersible pumps are placed underwater in the sump pit, while pedestal pumps are located above the pit. Both types help protect homes from moisture-related issues, such as mold and structural damage.