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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:

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Note

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:

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Note

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.

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Note

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 option  in the InfoWater Pro Ribbon in the Edit Group → Edit Command dropbox. Select the node to be deleted and InfoWater prompts the user to confirm deletion (if the Delete Confirmation checkbox  is checked in the Operation Settings tab in the Preferences settings.

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Note

All pipes attached to the Junction being deleted will also be deleted if the Auto Pipe Delete checkbox is checked in the Operation Settings tab in the Preferences settings.  The Junction and associated pipes are deleted and saved in the InfoWater recycle bin and can be recalled from the database using the Model Explorer - Command Center Tab under Utilities -> Recall (node or Pipe) command. However, if Auto Database Packing is checked (Operation Settings tab in the Preferences settings), then any element deleted is permanently deleted from the database and cannot be recalled. Deleted elements can be recalled until the Pack and then Clean commands (found in the Model Explorer - Command Center Tab under Utilities → Database menu list)are completed which removes deleted element ID's from the database.

Recall a deleted Junction?

To recall a deleted junction, go to Model Explorer - Command Center Tab under Utilities -> Recall and select theNode command. In order to perform the recall, the user must know the ID of the junction that was deleted. You may choose the Show Deleted Node command to obtain a list of  nodes deleted from the InfoWater project but saved in the InfoWater recycle bin. Deleted elements can be recalled until the Pack and then Clean commands (found in the Model Explorer - Command Center Tab under Utilities → Database menu list) are completed which removes deleted element ID's from the database permanently.

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