A well pump is a device used to extract water from a well. It operates by creating a vacuum or using mechanical force to draw water up from underground sources. There are different types of well pumps, including submersible pumps, which are placed underwater, and jet pumps, which are located above ground. These pumps are essential for providing water to homes, farms, and businesses, especially in areas without a municipal water supply. Proper maintenance of a well pump is crucial to ensure its efficiency and longevity, as well as to maintain the quality of the water it delivers.