As you build or revise your reservoir model, you may find it necessary to remove an element from the dam or reservoir. For example, you may find that you want to combine two or more existing outlets into an outlet group. Since cut, copy, and paste of reservoir elements are not features that have been implemented in the ResSim Reservoir Editor, be sure to create the new outlets in the outlet group before deleting the originals.

Take care when deleting or removing elements since once they're gone, they're gone. In other words, when you delete elements from the reservoir tree, ResSim immediately removes them from the reservoir and the reservoir network; no need to click the apply button. And, if you use cancel to close the Reservoir Editor, the deleted outlets will still be gone when you reopen the editor.

You can delete Outlet Groups, Diverted Outlets, Controlled Outlets, Power Plants, Pumps, and Uncontrolled Outlets from your reservoir. You can remove Evaporation, Seepage, and Leakage as well as Tailwater Elevation and Forebay Head Loss specifications from the reservoir and/or dam and its outlets and groups.

When you delete or remove a reservoir component, it will no longer appear in the reservoir tree. When you delete a Diverted Outlet, it will be removed from both the Reservoir Tree and from the network schematic shown in the Map Display Area of the Reservoir Network module. To replace a Diverted Outlet, you will need to re-draw it in the map display area.

To delete or remove an element from the dam or reservoir:

  • Right-click on the release element in the Reservoir Tree.

  • From the context menu, select Delete or Remove ("Figure: Reservoir Tree Element Context Menus - Delete & Remove").

    Figure: Reservoir Tree Element Context Menus - Delete & Remove


  • A confirmation window will appear. If the chosen outlet or group has rules that limit its operation, the confirmation window will show a list of those rules ("Figure: Confirm Deletion of Reservoir Component").

    Figure: Confirm Deletion of Reservoir Component


    • Select Yes to verify that you want to remove/delete the selected element and any rules associated with it. The element will disappear from the Reservoir Tree (and any rules associated with it will be deleted as well).
    • Select No to cancel the Delete component process.