QUICK-DISCONNECT KEYED VENTURI

A chemical delivery system and related methods of use in which a multi-port manifold is utilized to distribute a plurality of mixed chemical solutions. The multi-port manifold includes a single fluid inlet for receiving a diluent supply that is routed to a plurality of individual outlet ports. A venturi injector module including a valve assembly, a venturi mixing assembly and a latch assembly is fluidly coupled to each outlet port for individually controlling flow of the diluent through the outlet port. The venturi mixing assembly generally comprises a quick-connect projection for coupling the venturi mixing assembly to the outlet port. The latch assembly functions to retain the fluid connection of the venturi mixing assembly and the outlet port. The latch assembly and venturi mixing assembly generally include corresponding portions of a keyway shape that ensures that only the proper venturi mixing assembly is attached to the proper outlet port.