The self-priming pump is a highly effective and versatile pump type that eliminates the need for manual priming, saving time and effort during startup. It works by using centrifugal force to evacuate air and create a vacuum, allowing liquid to be drawn into the pump even when the casing is initially empty. Self-priming pumps find applications in a wide range of industries, including water supply, drainage, chemical handling, and agricultural irrigation. Despite their advantages, they do have limitations in suction lift and require regular maintenance to ensure long-term efficiency.