process
chlorine gas is released from a liquid chlorine cylinder by a pressure reducing and flow control valve operating at a pressure less than atmospheric the gas is led to an injector in the water supply pipe where highly pressurized water is passed through
a venturi orifice creating a vacuum that draws the chlorine into the water stream adequate mixing and contact time must be provided after injection to ensure complete disinfection of pathogens it may be necessary to control the ph of the water.