the pulp dryer paper making mill or the like through a discharge conduit 42 to a white water holding tank 44 it is conventional in the prior art to feed the white water from tank 44 through a conduit 46 to the last washing stage 30 where it is dispensed through nozzles 48 utilization of white water in the last washer stage 30 is said to substantially eliminate effluent from the pulp dryer paper mill or other pulp processing device in this prior art system fresh water alone or fresh water mixed with filtrate from the last washer stage or fresh water with minor amounts of white water from the white water holding tank 44 are utilized in conjunction with the next to last washer stage specifically the water or water mixture is added by way of conduit 50 to dispensing nozzles 52 associated with washer stage 14 as previously stated the above described prior art arrangement eventually leads to corrosion problems in the dryer or other pulp processing apparatus due primarily to the build up of salt pitch and resin concentrations that eventually effect the quality of the final pulp product build up of other substances which are potentially harmful to users of the end product may also occur turning now to fig2 illustrated therein is a schematic diagram of.