Bentley HAMMER CONNECT Edition Help

Flushing Manager

The Flushing Manager is used to set up flushing events, evaluate their effects and set up reports which can be given to operators to carry out flushing programs. The flushing manager can be opened by selecting Analysis > Flushing Manager or picking the flushing manager button from the Analysis toolbar.

Flushing in WaterGEMS/WaterCAD is designed to simulate the kinds of flushing performed to increase velocity or shear stress in pipes to remove any deposits and thus improve water quality. Velocity or shear stress can be compared with target values to determine if flushing was successful. This type of flushing is based on steady analysis. If flushing is being performed to decrease water age, it is best modeled by setting up an extended period simulation run to view the changes in water age or some other constituent.

Upon opening the manager, the user should select the New button. This will enable the user to start a new flushing study. Within a study, the user would usually specify Areas which correspond to work done for example in one area of the distribution system or during one shift.

Note: For users of WaterGEMS and WaterCAD SS3 and earlier, flushing was controlled in the flushing alternative. For SS4 and later, this functionality was moved to the Flushing Manager and a large number of additional features were added. Opening a file created in SS3 or earlier will result in the information from the flushing alternative being transferred to the Flushing Manager.

The following Help topics provide details on the steps involved with setting up flushing and viewing results.