Chlorine injector for treatment of effluent

An injector of a water treating substance for treatment of water, comprising means defining a fluid passageway in communication with said water to be treated, first vacuum means to create a first vacuum in said passageway, second vacuum means to create a second vacuum in said passageway adjacent to and downstream from said first vacuum to add to and supplement the force of said first vacuum to provide a total vacuum force greater than either of said first and second vacuum means can provide acting separately, means defining a port opening to said passageway to introduce a water treating substance therein when said first and second vacuums are created, wherein said first vacuum means includes a venturi tubular member in said passageway, said venturi tubular member including a first nozzle, said first nozzle including an upstream end and a downstream end, a second nozzle positioned downstream of said first nozzle, said second nozzle including a flared end portion in registration with said downstream end of said first nozzle to create said first vacuum when fluid is flowed through said passageway, into and through said first and second nozzles of said venturi tubular member and the said flared end portion of said nozzles, wherein said second vacuum means includes an elongated tubular member in said passageway, said tubular member including an upstream end and a downstream end, means defining an inlet port opening to said upstream end of said elongated tubular member positioned above the surface of said water to be treated, means defining a discharge port opening to said downstream end of said elongated tubular member positioned below the surface of said water to be treated, said water to be treated providing back pressure at the said discharge port, and flow means to flow a fluid into said tubular member at a rate to fill such tubular member until the pressure within said tubular member begins to exceed said back pressure resulting in more rapid discharge into said water to be treated and in creation of said second vacuum, said fluid filling said tubular member constituting a column of fluid extending from said inlet port to said discharge port of said tubular member, said column of fluid as it moves from said inlet port toward said discharge port causing a vacuum to form between said inlet port and said column of fluid as it moves toward said discharge port and said column of fluid as it moves toward said discharge port thereby creating said second vacuum, wherein said fluid passageway includes means defining a water chamber positioned above a body of effluent water to be treated, an effluent water inlet tube extending from said body of effluent water to said water chamber pressurized air means operatively associated with said effluent water inlet tube to flow effluent water upwardly into said water chamber, the bottom portion of said water chamber opening for flow of said effluent water outwardly of said chamber and past said first vacuum means to create said first vacuum, then past said second vacuum means to create said second vacuum, and means for introducing water treatment substance into the passageway wherein said water treating substance introduced into said passageway when said vacuums are created mixes with said effluent water flowing in said passageway for eventual discharge into said body of effluent water to treated.