A centrifugal pump is a kinetic energy device, which accelerates water from a low to a high velocity and converts the velocity into pressure or head at the discharge. The principle of a centrifugal pump involves the exertion of centrifugal force by the impeller causing rotation in the liquid, resulting in a total head and flow of water. The faster the impeller rotates, the greater the water flow rate, total head and power input requirement. In theory, from pump affinity laws, the volume rate of flow is proportional to the pump speed (n), the total head is proportional to n2 and the hydraulic power is proportional to n3.