Abstract: A high efficiency reverse osmosis system which utilizes a tuned injector in fluidic communication with a reverse osmosis membrane. The tuned injector includes an injector housing, an injector nozzle, a mixing chamber and an injector throat. The tuned injector utilizes line hydrostatic pressure to inject raw water with an injector nozzle into the mixing chamber to mix with recirculated concentrate water drawn into the mixing chamber by venturi effect and hydrostatic pressure to form feed water. The feed water is then discharged through the injector throat across a reverse osmosis membrane to produce permeate water using the line hydrostatic pressure.

Abstract: A high efficiency reverse osmosis system which utilizes a tuned injector in fluidic communication with a reverse osmosis membrane. The tuned injector includes an injector housing, an injector nozzle, a mixing chamber and an injector throat. The tuned injector utilizes line hydrostatic pressure to inject raw water with an injector nozzle into the mixing chamber to mix with recirculated concentrate water drawn into the mixing chamber by venturi effect and hydrostatic pressure to form feed water. The feed water is then discharged through the injector throat across a reverse osmosis membrane to produce permeate water using the line hydrostatic pressure.

Abstract: A single housing for insertion in one hole in a sink provides three fluid flows: (a) drinking water (b) dishwater effluent and (c) water treatment effluent. In addition, a vent or air gap to atmosphere is provided at the housing for the two effluents to satisfy code requirement of an air gap between the dishwater and drinking water device, and the sanitary sewer. A vented airspace is also provided between the drinking water pipe and the housing.