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Junction nodes are points placed at the intersection of two or more pipes (intersections or tees). Junctions are used to represent points of water consumption or inflow, points where specific analysis values (e.g., pressure, concentration) are desired, and at points where pipe attributes (e.g., diameter, material) change.  Junction nodes must have their elevation above datum (e.g., sea level) specified in order for pressure computations to be meaningful.

How do I...

Create a Junction?

To create a junction node, do the following:



You can also use the Digitize Network iconfrom the → Insert Command dropbox  to create a pipe and node network "on the fly".  Once digitized, the user is able to add relevant modeling data in the Model Explorer - Attribute Tab window or via the DB Editor.

 Edit a Junction?

Graphic Selection - To select a junction node for data edit do one of the following:


Data Edit - To edit the data related to a junction, first select the junction using the tools above. Once selected, edit Junction related data by adding/modifying the fields in the Model Explorer - Attribute Tab window.  Additionally modifications may be done by editing the DB Tables that may be accessed from the InfoWater Pro Ribbon in the Edit Group using the → DB Editor icon Image Modified .

 Graphic Edit  - To edit the node graphically do one of the following: From the  InfoWater Pro Ribbon in the Edit Group using the → Edit Command dropbox icon Image Modified select the Move Node command Image Modified from the dropdown . Left click on the mouse and hold the left click down on the junction to select it. With the junction highlighted move the node to the desired position while keeping the left click mouse button depressed. Once in the desired location, release the left mouse button and the node location will be updated to the new location.


When the Move Node command in the InfoWater Pro Ribbon in the Edit Group → Edit Command dropbox is the active command it will be highlighted in Blue as shown: 


If the user has not enabled "Auto Length Calculation" checkbox under the InfoWater Pro Ribbon in the Project Group using the Preferences icon and the Operations tab, all pipes connected to a node moved will not have their lengths automatically changed.

Edit the data for a group of Junctions?

Group edits can be made by either creating a domain or by creating a selection.



Group Editing for certain specific features may also be done by choosing the Group Editing icon or the Edit Domain icon under the InfoWater Pro Ribbon in the Edit Group . Refer to the sections on Group Editing and Edit Domain to learn more.

Delete a Junction?

To delete a junction, select the Delete Node icon from the InfoWater Edit Network tool bar.  InfoWater prompts the user to confirm deletion (if the Delete Confirmation command is enabled through the InfoWater Control Center -> InfoWater button -> Tools menu -> Project Preferences command -> Operation Settings tab).