drawn by the pressure drop between the primary nozzle and the wider inlet and a suction chamber extending between the suction inlet and a secondary nozzle a jet of high velocity fluid exits the secondary nozzle an example of this type of mixer is shown in fig4 as shown in mixer 600 pressurized liquid from a pump not shown flows through an inlet passage 602 and exits through a primary nozzle 603 ambient liquid is drawn through a suction inlet 604 into suction chamber 606 by the pressure drop caused by the flow of pressurized liquid the combined flow exits from the suction chamber into the ambient liquid at high velocity through secondary nozzle 608 mixing occurs both in the suction chamber and in the ambient liquid due to the jet action of the exiting jet of liquid a mixing system that operates according to a similar principle is shown in fig4 a mixers embodying this design are commercially available from itt water and wastewater under the tradename flygt u2122 jet mixers in system 618 pump 620 generates a primary flow that is delivered to the tank not shown through a suction nozzle system 622 the suction nozzle system 622 includes a primary nozzle 624 which functions in a manner similar to primary nozzle 603 described above causing ambient fluid to be drawn into the adjacent open end 626 of ejector tube 628 due to the pressure drop induced by the fluid exiting the primary nozzle the combined flow then exits the other end 630 of ejector tube 628 which functions as a secondary nozzle as a high velocity jet the nozzle shown in fig5 referred to as an eductor nozzle operates under a similar principle a nozzle embodying this.