This is a list of articles containing general FAQs for Bentley WaterGEMS and WaterCAD products.
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Import and Export
How to export a selection set to shapefiles
How to export model elements to shapefiles
Submodel Importing and Exporting
Elements
How can I model a backflow preventer?
How does the gas law model work for a hydropneumatic tank in WaterGEMS or WaterCAD ?
Junction vs. Hydrant
What happens when a tank becomes empty or full?
Why is the HGL in my hydropneumatic tank sometimes very large and beyond the pump control range?
FlexTables
Customizing FlexTables for viewing and reporting data -- Moving, adding, and removing columns
How to filter a FlexTable by Query, Selection Set, or by selecting from drawing pane for reporting, global edits, etc.
New Flextable features in 08.11.06.58+ (Water products) and 08.11.05.113+ (Storm/Sewer products)
General
Can I restore a backup file of my model project?
Property grid, Element FlexTable, or other dialog will not open
What is the difference between WaterCAD and WaterGEMS?
Where do I go to change the analysis type, timestep, duration, etc?
Why do I keep getting prompted to compact the database when I open my model? What does this mean?
Input
Active Topology Management
Are minor losses from pipe bends automatically considered?
Building A Model Using ModelBuilder
Can I model fluids other than Water?
Changing symbol size, text height, or line width for elements in a model
Element label editing and automatic numbering
How can I export my GIS-ID's to a shapefile?
Importing a CAD (DXF) Drawing Using Modelbuilder
In the water products, junctions appear to overlay a pipe instead of connecting to it
Inserting or laying out pipe bends
Using EPS Snapshots to apply demand patterns to a steady state simulation
Modifying and adding entries to Engineering Libraries
My controls aren't being followed. What's going on?
Scenario and Alternative Management
Setting Boolean (True/False) Fields using Model Builder
Should I use the inside diameter or outside diameter for the "diameter" field for my pipes?
Updating A Model Using Model Builder
Updating Source File Using Model Builder
What is the asterisk column in the Alternative Editor Dialog Box used for?
What is the difference between a Simple Control and a Logical Control? What is the difference between simple and logical controls?
When importing a submodel, why do my new elements turn inactive and old elements change their attributes to the defaults in the new scenarios?
Which demands are used for a steady state simulation?
Why are there 2 entries for the same alternative in the dropdown menu in the properties of a scenario? One with an "i" and one without it.
Output & Reporting
Changing drawing style for better viewing of element symbols and annotations
Changing the default property values when creating model
How can I find the total volume of water through a certain element?
How can I remove or display pipe flow arrows?
How do you add color coding or annotation to an element?
Using Fit To Page Printing In The Standalone Platform
What does it mean when an element is "hydraulically disconnected"?
What does the notification "pump cannot deliver desired head" mean?
What is the meaning of the notification "Valve cannot deliver flow", with regards to a Flow Control Valve (FCV)?
When importing a DXF as a background, it does not show up in the model, even when pressing zoom extents.
Why do I get a negative pressure at a high point in my system? Shouldn't the pump add enough head to push the water over the hill?
Why do I see residual mouse trails (visual artifacts) left behind when moving things in the drawing pane?
Why do I sometimes see a negative flow through a pipe?
See Also
WaterCAD Product Information
WaterGEMS Product Information
WaterGEMS and WaterCAD TechNotes and FAQs
OpenFlows Product TechNotes And FAQs
OpenFlows Water Solutions on Bentley Website