Professional gasoline water pump supplier with 20+ years of experiences, our Best Gasoline Water Pump is a centrifugal pump. The working principle of a centrifugal pump is that when the pump is full of water, the engine drives the impeller to rotate, thereby generating centrifugal force. The water in the impeller channel is thrown to the periphery and flows into the wholesale gasoline water pump casing under the action of centrifugal force, so the center pressure of the impeller decreases. Below the pressure in the inlet pipe, water flows from the suction pool into the impeller under the action of this pressure difference. In this way, the pump can continuously suck water and supply water continuously.