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tank before flowing through the condenser coils in the heat rejection stages. It is then deaerated and mixed with the recycle brine in the most heat rejection stage. In order to save on pumping costs because of difference in pressure losses, sea water for heat rejection only is pumped through other condensers in the heat rejection stages and is finally discharged into an open channel to return it to the sea two miles away. Rejected brine from the flashing brine stream in the last stage and other cooling water streams are also discharged into this channel. Recycled brine is pumped from the vacuum sump in the final stage and returned through the condensers in the heat recovery stages counterflow to the flashing brine. After finally being heated to 250ºF. in shell-and tube-type heat exchangers by means of 30 psig exhaust steam from the boiler plant, the hot recycle brine flows into the first stage of the evaporator to begin the series of flashings. Accumulations of noncondensible gases are drawn from every sub-atmospheric stage through the steam jet ejector system. Pressure stages are vented to atmosphere. Distilled water product is collected in an open stream within the evaporator. It also is arranged to flash from stage to stage as a means of recovering its sensible heat. It is finally pumped through a water coolers for delivery to plot boundary at 90ºF maximum and 25 psig. Condensate from the brine heaters and steam jet ejectors is returned as boiler feed water. -8-17-Epson Perfection 4870 Photo, 400 dpi, 8 bit, 14,202,880 byte