Create flush zones for a UDF model

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Video quiz

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From the Map ribbon, which button should you click to begin the process of adding flush zone GIS data to your hydraulic model?

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Step-by-step guide

With InfoWater Pro UDF, the Flush Zone Manager can be used to create and manage parameters and characteristics for specific flush zones within a distribution system. This example imports flush zone GIS data, and then uses the Flush Zone Manager to create flush zones for the hydraulic model.

  1. Open a hydraulic model in InfoWater Pro.
  2. From the Model Explorer, click Run to open the Run Manager.
  3. Click Run to run a simulation and check that the model is hydraulically sound.
  4. Click OK.

The InfoWater Pro ribbon, Analysis panel, with Run highlighted in red; and the Run Manager dialog box, with the Run button highlighted in red.

To add flush zone GIS data to the model:

  1. From the Map ribbon, Layer panel, click Add Data.

The ArcGIS Map ribbon, Layer panel, with Add Data highlighted in red.

  1. Navigate to and select the GIS data to import. In this example, the shapefile UDF_Flush_Zones is selected.
  2. Click OK.

The Add Data dialog box, with UDF_Flush_Zones selected and highlighted in red, and OK selected.

  1. In the Contents pane, right-click the new layer and select Symbology.

In the Contents pane, the new FlushZones layer highlighted in red, and in the expanded context menu, Symbology selected.

  1. In the Symbology pane, with the Primary symbology tab active, expand the drop-down and click Unique Values.

In the Symbology pane, the Primary symbology drop-down expanded, with Unique Values selected.

  1. Expand the Field 1 drop-down, and select ZONE.

The map updates by color-coding each flush zone. In this example, Zone 01 is assigned a pink color and Zone 02 is a green color.

In the Symbology pane, Field 1 set to Zone and highlighted in red, and in the map, the color-coded flush zones displayed in pink and green.

  1. Right-click <all other values> and select Remove.
  2. Close the Symbology pane.

To open the Flush Zone Manager:

  1. From the Model Explorer window, switch to the UDF tab.
  2. Select Flush Zone Manager.

In the Model Explorer, UDF tab, the Flush Zone Manager button highlighted in red.

There are currently no flush zones listed in the Flush Zones group box.

To create a zone:

  1. Click New Flush Zone to open the Identification dialog box.
  2. In the Zone ID field, enter a name for the new zone, such as “ZONE_01”.
  3. Click OK.

The Flush Zone Manager with no zones listed in the Flush Zones box and New highlighted in red, and in the Identification popup, the Zone ID entered for this example and OK both highlighted in red.

In the Flush Zone Characteristics group box, enter the following:

  1. Set the Minimum Flush Velocity to 4.
  2. Set the Maximum Flush Volume to 20,000.
  3. Set the Maximum Flush Length to 2,000.
  4. Set the Minimum Residual Pressure to 20.
  5. Set the Minimum System Pressure to 30.
  6. Set the Minimum Shear Stress to 0.15.
  7. Expand the Flush Area drop-down and pick ZONE01.

The Flush Zone Manager, with the Flush Zone Characteristics for ZONE_01 configured for this example.

When flush sequences run, UDF compares each of these values against the actual calculated value during a simulation. If the model does not exceed the entered value, a warning will be generated.

Now, create another flush zone:

  1. Click New.
  2. Enter a name, such as “ZONE_02”.
  3. With the new zone selected in the Flush Zones group box, assign the same values to the fields edited for the first zone.
  4. In the Flush Area drop-down, select ZONE02.

To change the zone color:

  1. Click the Highlight Color box.
  2. Pick a color from the palette. In this example, yellow is chosen.
  3. Click OK to close the Color dialog box.

The Flush Zone Manager, with Flush Zone Characteristics for ZONE_02, including a new Highlight Color, configured for this example.

  1.  Click OK to close the Flush Zone Manager.
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