A jet pump assembly comprising: an inlet body having a receiving end, an intermediate section, and a discharge end, the inlet body configured to receive a drive flow of a motive fluid at a first velocity through the receiving end and to facilitate movement of the motive fluid through the intermediate section to the discharge end; a throat structure arranged in proximity to the discharge end of the inlet body so as to provide an entrainment entrance between the discharge end and the throat structure, the throat structure configured to receive the motive fluid from the inlet body and first and second entrained flows (406, 408) of suction fluid external to the inlet body; at least one channel extending from a surface of the intermediate section to a surface of the discharge end of the inlet body, the at least one channel defining an entrainment passage for the second entrained flow of suction fluid such that the second entrained flow is isolated from the drive flow while passing through the inlet body; characterized in further comprising: a plurality of nozzles disposed on the discharge end of the inlet body and configured to discharge the motive fluid from the inlet body into the throat structure at a second velocity, the second velocity being higher than the first velocity so as to create a pressure drop within the throat structure, the pressure drop facilitating the first entrained flow of suction fluid into the entrainment entrance and the second entrained flow of suction fluid through the at least one channel, wherein the at least one channel extends to a surface of the discharge end surrounded by the plurality of nozzles. an inlet body having a receiving end, an intermediate section, and a discharge end, the inlet body configured to receive a drive flow of a motive fluid at a first velocity through the receiving end and to facilitate movement of the motive fluid through the intermediate section to the discharge end; a throat structure arranged in proximity to the discharge end of the inlet body so as to provide an entrainment entrance between the discharge end and the throat structure, the throat structure configured to receive the motive fluid from the inlet body and first and second entrained flows (406, 408) of suction fluid external to the inlet body; at least one channel extending from a surface of the intermediate section to a surface of the discharge end of the inlet body, the at least one channel defining an entrainment passage for the second entrained flow of suction fluid such that the second entrained flow is isolated from the drive flow while passing through the inlet body; characterized in further comprising: a plurality of nozzles disposed on the discharge end of the inlet body and configured to discharge the motive fluid from the inlet body into the throat structure at a second velocity, the second velocity being higher than the first velocity so as to create a pressure drop within the throat structure, the pressure drop facilitating the first entrained flow of suction fluid into the entrainment entrance and the second entrained flow of suction fluid through the at least one channel, wherein the at least one channel extends to a surface of the discharge end surrounded by the plurality of nozzles.