Self-priming pumps are highly versatile and efficient, particularly in applications where priming is a concern. They are capable of operating under varying fluid conditions and can handle air, making them invaluable in certain industries. However, their performance is limited by factors such as suction lift, fluid viscosity, air handling capacity, and the types of fluids being pumped. These pumps also require regular maintenance to keep them running efficiently. By understanding the specific operating conditions and limitations, users can ensure that self-priming pumps perform optimally and last for a long time.