PURPOSE: To eliminate the priming by facing the delivery port of a jet pump and suction port of a volute pump while returning a portion of the delivery water from the volute pump to the jet pump.

CONSTITUTION: The well water 7 will flow through strainer 25-opening 17-water path 26-diffuser 12-delivery port 27-suction port 30-impeller 5-impeller chamber 28-through hole 29-water path 26-delivery port 24-nozzle 11 and filled in the volute pump section 1 and jet pump section 8. Upon connection of the power source, the rotary shaft 4 and impeller 5 will rotate. Upon rotation of the impeller 5, water 7 in said chamber 28 having increased pressure will lift through the through hole 29 to the water path 23-delivery port 24-pumping tube thus to eliminate the priming.