The field journal (flush book) consists of a series of graphical maps and technical data sheets to guide field personnel in implementing the optimal sequence of unidirectional flushing. For each flushing zone analyzed by InfoWater UDF, the field journal graphically shows for each flush sequence the fire hydrants and valves that need to be manipulated for systematic, unidirectional cleaning. It also reports important information such as pressure and flow, flushing volume, flushing duration, and water quality.

The field journal contains all the information a water utility requires to effectively implement an optimal unidirectional flushing program for maximum cleaning and at maximum cost savings.