In an aircraft deicer comprising a reservoir and a pump connected to the reservoir through a first conduit, the pump operating to circulate a fluid contained within the reservoir throughout at least a portion of the deicer, the improvement comprising: a jet pump located in the first conduit between the reservoir and the pump for increasing the pressure of the fluid within the first conduit between the jet pump and the pump; the jet pump comprising a tubular body portion having an inlet end and a discharge end and a nozzle located within the body portion between the inlet end and the discharge end; and a second conduit extending from a discharge end of the pump to the nozzle; whereby fluid from the discharge end of the pump is injected into the fluid flowing from the reservoir through the jet pump.