Protector - isolating pipes

The Isolation module of the Protector app allows for accurately identifying pipes that contain shut-off valves. This helps to determine which pipes in the system need to be closed in order to isolate a particular node element from the rest of the water distribution system.

This example determines which pipes should be closed to isolate the affected facilities in the water distribution network, from a tracer injected at a junction where a contamination event was observed.

1. Double-click the desired project .aprx file to open ArcGIS Pro.
2. Click the InfoWater Pro tab to open the InfoWater Pro ribbon.
3. In the Project panel, click Initialize.

Start by running a simulation for the current scenario:

4. On the InfoWater Pro ribbon, in the Analysis panel, click Run to open the Run Manager.
5. Click Run to run the simulation and create an output for the current scenario.

6. Close the Run Manager.

To access the Protector:

7. On the ribbon, in the Project panel, click Apps.
8. From the Apps Manager, select Protector.
9. Click Run.

10. In the Protector app, switch to the Isolation tab.
11. Enter a Source Node Location of 2222.

Junction 2222 is where a tracer was previously injected to determine the extent of a contamination event.

12. Under Closable Devices, enable both Include Active Valves and Include Active Pumps.

Next, search for closable pipes on a selection or a domain:

13. Under Closable Pipes, make sure that Domain is selected.
14. Click Edit Domain to open the Domain Manager, to select the closable pipes.
15. In the Domain Manager, under Element Source, enable Selection Set.
16. Use the drop-down to select the CLOSABLE_PIPES selection set.

The CLOSABLE_PIPES selection set contains all pipes with closable valves.

17. Click Add.
18. Click Close to exit the Domain Manager.
19. Under Result Selection Set, use the Affected Facilities drop-down to select AFFECTED_FACILITIES.

This selection set was created previously to identify the extent of the contamination.

20. Enable Extend Affected Area by Connectivity Search.
21. Next to the Closed Facilities drop-down, click the Browse (…) button to open the Selection Set dialog box.
22. Click New.
23. In the New Selection Set popup, enter a name of “CLOSED_FACILITIES” for this example.

24. Click OK to close the popup.
25. Click OK again to close the Selection Set dialog box.

Closed facilities identified by the Protector are saved to the CLOSED_FACILITIES selection set.

The Isolation simulation is now ready to be run:

26. In the Protector, click Run.

Once the simulation is complete, in the model, the source location of junction 2222 is shown in yellow, the affected facilities appear red, and the closed facilities are gray.

27. In the Isolation tab, use the Color on Map settings to change these colors, if desired.
28. Click Purge Water to calculate the volume of water needed to purge the affected areas.

29. Click OK to close the Purge Volume dialog box.
30. Click Close to exit the Protector.