To stop backflow, foot valves are installed at the base of a pump suction pipe. These are helpful in preventing air from being drawn in while allowing liquid to flow into the pump. In addition to preventing the pump from losing its prime, these tools also guarantee that the liquid being pumped is clean. Foot valves are added to pipelines or the suction of pumps to stop water from flowing backward after the pump is turned off. When the pump pauses, the valve retains the fluid trapped in the suction pipe, maintaining a good prime for the pump and avoiding pump burnout.