A line pump is a type of concrete pump used to transport liquid concrete from a mixer to a construction site. It consists of a series of pipes and hoses that carry the concrete through a continuous flow. Line pumps are often used for smaller jobs, such as residential projects or in areas where access is limited. These pumps are typically powered by a diesel or electric engine and can be mounted on a truck or trailer for easy mobility. They are ideal for pumping concrete over long distances or to elevated areas, making them a valuable tool in the construction industry.