OpenFlows | Water Infrastructure
OpenFlows | Water Infrastructure Wiki
Which "Tank Mixing Model" attribute should I use?
OpenFlows | Water infrastructure Wiki
Calculations - Bentley WaterGEMS
Change the size of flow arrows in ArcGIS Pro
Conversion - Bentley WaterGEMS
Error importing geodatabase using ModelBuilder: Object reference not set to an instance of an object
Error message opening program: “This implementation is not part of the Windows Platform FIPS validated cryptographic algorithms.”
Error publishing i-model: Could not add file level provenance
Error trying to to Add Joins or Remove Joins: Object reference not set to an instance of an object
General - BENTLEY WATERGEMS
Help and Documentation - Bentley WaterGEMS
How to add element labels in ArcGIS Pro
How to determine if a condition or action is being shared with other controls?
How to remove bends from a pipe or conduit
How to troubleshoot system deficiencies in a hydraulic model, like flooding, low pressures, or tank or pipe size
Image background file causes application to crash without an error message
Installation - Bentley WaterGEMS
Integration - Bentley WaterGEMS
Interchange - Bentley WaterGEMS
Layout and Data Input - Bentley WaterGEMS
"Calculations failed due to one of the following reasons..." when trying to use Loadbuilder in ArcMap
"Is variable speed drive?" vs "Is variable speed pump?"
Adding Minor Losses to Pipes
Are minor losses from pipe bends automatically considered?
Assigning isolation valves to pipes in batch
Attempted to read or write protected memory error appears when loading image in background
Automatically get the layers in the ArcMap or ArcGIS platform to populate the OpenFlows icon symbology
Can a KYPipe model be imported into WaterGEMS or WaterCAD?
Can Bentley Map files be used in ModelBuilder?
Can I add a field to a WaterGEMS layer without corrupting the feature class or geodatabase?
Can I update the data in excel when it’s a datasource in SCADAConnect?
Can ModelBuilder or LoadBuilder use shapefiles that have just a defined geographic coordinate system?
Can SCADAConnect support a connection to ClearSCADA or other SCADA systems besides Citect?
Can we analyze premise plumbing systems in WaterGEMS / WaterCAD ?
Cant filter fixed demand pattern in the customer element flex table.
Changing currency of unit cost of pipe, energy cost
Changing the default property values for newly created elements
Changing units and decimal precision in Properties, Flextables, graphs or profiles
Citect ctAPI dlls are missing - SCADAConnect - Connection Manager - Citect Connection
Configuring SCADAConnect for GE Historian / GE Proficy
Connecting to a SQLITE data source in SCADAConnect
Converting nodes into bends
Creating Thiessen polygons for certain nodes in your model
Customizing element properties grid with Property Grid Customizations
Darwin Designer error: "Feasibility check failed. No feasible solution exists with current input data..."
Designing a sprinkler system in WaterCAD or WaterGEMS
Determining Bulk Reaction Rates for Water Quality Analysis
Disconnection error with hydrant connected to lateral
Distributing a lump sum demand or load over a large area
Drawing pane is blank or empty - no model elements appear
Duplicating Controls - One control is changed in the controls tab and it changes another control.
DXF or Shapefile background not showing or not aligned with model
Elements turning inactive and reverting to default properties after submodel import
Error importing DEM data with TREX: "HRESULT E_FAIL HAS BEEN RETURNED FROM..."
Error importing in ModelBuilder from ProjectWise: Invalid ESRI Shapefile
Error opening model file: "Object reference..." and "Be sure to provide a database format that is valid for WaterGEMS CONNECT Edition Update 1"
Error when importing a .DXF file with ModelBuilder "Attempted to read or write protected memory..."
Error when using Bentley Bing Map key
Error while editing the Modelbuilder.xml file with the third party application
Estimating a pump curve for a model
Finding and fixing duplicate labels
Graph of multiple point pump curve not matching values in table
How can I convert my GIS data to a water or storm-sewer model inside ArcMap?
How can I create a selection set from data I have in an excel spreadsheet?
How do I open a model that is already associated with an ArcMap MXD file or ArcGIS Pro APRX?
How do you model a booster pump in WaterGEMS/WaterCAD?
How do you use Skelebrator on only a certain selection set of elements?
How to create custom fields using User Data Extensions
How to select elements based on their demand pattern
How to set separate weekday and weekend patterns
I cannot see table type – Field data snapshot for mapping, while importing data through Modelbuilder
Ill-conditioning User Notification for valves in a hydraulic model
Import and export Modelbuilder connections with a Modelbuilder Connection File
Import loads from shapefile containing polygons with land use type and total population
Importing Darwin Calibrator Field Data using ModelBuilder
Importing Data into the Installation Year Field
Importing extended attributes from a DXF or DWG
Index was outside the bounds of the array error in the Thiessen polygon creator tool or Loadbuilder
Is it possible to use the various tools that are present in WaterGEMS through WaterObjects.NET?
Is there a way to "reset" water age at a chlorine booster station?
Labels are not displaying in ArcMap when reopening a project file
Labels only showing up for some elements when using Label Features in ArcGIS mode
Loadbuilder error: "There are no results available for the given input parameters"
LoadBuilder: Allocate demands based on pipe length
Missing pipes when exporting to EPANET
Model not updating when using Spatial Join option in ModelBuilder
Modelbuilder crashes while updating model with shapefiles after split action in WaterGEMS
ModelBuilder error: "Some current pipes in the model are missing endnodes, Use Network Navigator..."
ModelBuilder Error: "The .Net Framework OleDb Data Provider requires Microsoft Data Access..."
Modelbuilder – oracle - GIS spatial data connection
Modeling heat loss in WaterGEMS and WaterCAD
Negative values shown for Time in Time Series Field Data
Non-English characters (Hebrew, Arabic, etc) not displaying correctly in DXF or Shapefile Background
Opening multiple shapefiles in ModelBuilder from ProjectWise
Opening old WaterCAD or WaterGEMS WCD model files and preserving presentation settings
Out of memory error when loading a background file
Pipe numbering vs. number of pipes in model
Polylines or points show as Polygon in ModelBuilder
Preparing GIS data for use in the hydraulics and hydrology products
Problems with pressure dependent demand functions and piecewise linear table
Program throws and exception when entering local bulk reaction rate
Run an Extended Period Simulation (EPS)
Selecting junction or hydrant as the nearest node in Loadbuilder methods
Should I use the inside diameter or outside diameter for the "diameter" field for my pipes?
The flow arrows in ArcMap disappear after applying a color coding
Troubleshooting problems with importing EPANET or EPASWMM files
Understanding Constituent Source Types and Constituent patterns
Understanding Tank Operating Range
Unit demand control center Vs. Demand control center
User Notification: "GPV curve contains non increasing discharge values"
User Notification: Multiple point pump curve contains non-increasing flow points.
Using an ArcGIS Utility Network to build a model
Using Controls, Conditions, Actions and Control Sets in WaterGEMS and WaterCAD
Using Darwin Calibrator boundary override Headloss Setting for a TCV
Using ModelBuilder snapshots to help track changes and updates between source file and model file
Using Tank Low and High Alarm
Using the WHERE clause and Duplicate option in ModelBuilder to filter imported data
What is the "Discharge Coefficient"?
When working in ArcGIS mode, why are the tools in the product menu and toolbar greyed out?
Where do I go to change the analysis type, timestep, duration, etc?
Which "Tank Mixing Model" attribute should I use?
Why doesn't my load use type field show up in the "population density type" field?
Why is the “lag pump count” field not available when selecting Fixed Flow as the “VSPB Type”?
Working with Demands in WaterGEMS and WaterCAD
Libraries/Catalogs - Bentley WaterGEMS
Licensing - Bentley WaterGEMS
Materials and Minor Loss engineering libraries in Chinese
Modeling - Bentley WaterGEMS
Modeling scenarios with different demand conditions
N/A - Bentley WaterGEMS
New Features and Enhancements for OpenFlows products
No items available in Usage Field pulldown menu when adding demands or loading in LoadBuilder
Other - Bentley WaterGEMS
Output and Reporting - Bentley WaterGEMS
Output/Results Presentation - Bentley WaterGEMS
SCADAConnect Simulator adding a "#" symbol to SQL query
Sorting by label is not in the expected order
Unexpected, automatic updating of model when working on the MicroStation integrated platform for OpenFlows Products
Using ArcGIS Pro Snapping tool to create elements in the ArcGIS Pro platform
Using Skelebrator to reduce the number of pipes in a model
Using Text, Line, and Border feature
Using Variable Speed Pumps in WaterGEMS and WaterCAD
What does node elevation represent in WaterCAD, WaterGEMS and HAMMER?
What is the difference between the Schematic and Scaled drawing mode?
What's New in WaterGEMS and WaterCAD CONNECT Edition Update 2
What's New in WaterGEMS and WaterCAD CONNECT Edition Update 2 - build 10.02.01.06
What's New in WaterGEMS, WaterCAD, and WaterOPS CONNECT Edition Update 3 (10.03.05.03 & 10.03.05.05)
What's New in WaterGEMS, WaterCAD, and WaterOPS CONNECT Edition Update 3.4 (version 10.03.04.05)
What's New with WaterGEMS and WaterCAD CONNECT Edition Update 1
Workflow for Age, Constituent, and Trace analyses using WaterGEMS and WaterCAD
Help and Documentation
Licensing / Activation
Layout and Data Input
Output and Reporting
OpenFlows Product TechNotes And FAQs
Check boxes do not appear in tables such as Control Sets dialog
Consuming ContextCapture production files within your hydraulic model
Convergence NOT achieved Message when computing StormCAD or SewerCAD model
Converting Junctions or Hydrants to Isolation Valves
Displaying Shapefile Labels (Text) As a Background
Enhancing OpenFlows multi-user workflows with ProjectWise Share
Error 32768 when opening model while integrated with ProjectWise
Errors installing patch set
Error when opening PondPack: "Object reference not set to an instance of an object" or "Application has generated an exception that could not be handled."
Error when saving or validating: System.AccessViolationException: Attempted to read or write protected memory.
File Open Dialog does not appear
Flextable Report of Multiple Element Types
Get to know OpenFlows CONNECT Edition
Get to know WaterGEMS, WaterCAD and HAMMER CONNECT Edition
How do I import/export multiple point pump curve pump definitions into a model using ModelBuilder?
How do you save backup files, so they save at different times and multiple levels?
How does the intermediate geodatabase (.MDB or .GDB) file function with ArcMap and ArcGIS Pro integration?
How to Delete Engineering Libraries if you get a message about a Read-only database
How to receive alerts on new version availability?
How to register DAO360.dll or a dll file?
How to search using wild cards on a sqlite type of database
How to See Hebrew or Arabic text in a .DXF file that was exported from WaterGEMS/WaterCAD
Hydraulic grade discontinuity at steep pipes or across nodes (frontwater analysis)
I get a red user notification that says, "Inlet guttter mannings n should be greater than 0".
Importing .HLB library files from old product versions into format used in the V8 product versions
Importing External Data in Geographic Coordinate Systems
Importing storm data and other library information from older versions
Changing element symbols in the AutoCAD platform
Locating OpenFlows product error log file
Locating OpenFlows Product Version Number and License Information
Model backward / forward compatibility
Modeling a closed loop system
Modeling a flow split (diversion) with the SewerCAD or StormCAD numerical solver
Modeling turbine load acceptance plus load rejection
Multiple CN numbers for a catchment and multiple catchments with a single outlet node
Network Navigator Trace Upstream/Downstream does not return any elements
OpenFlows software numerical solver theory
Percent Connected Impervious Areas and Percent Unconnected Impervious Areas
Performing a hydrosanitary design in WaterGEMS or WaterCAD
PondPack user notification: "The composite outlet structure is either not selected or deleted."
Pressure pipe vs. conduit between pump and wetwell
Print Preview > Fit to Page shows blank page or Reports will not print
Properties not working when using MicroStation integration with ProjectWise
Properties, Flextables, user notifications, or other dialog is missing or will not open or appears to freeze the program in standalone
Properties, user notifications, or other tool managers not showing up in Integrated version of AutoCAD
Reusing Pump Definitions (Import / Export)
Reversing orientation of Pipes and Conduits in Bulk
Saving a hydraulic model when using the AutoCAD platform (i.e. integrated)
Important License Update for OpenFlows Users
Setting the invert elevation for multiple conduits coming into one manhole
Simple Controls vs. Logical Controls
Sorting and relabeling a flextable based on upstream-downstream order
Source of the default Specific Speed for pumps and turbines
Procedure for finding the curb length needed to capture 100% of gutter flow in a curb inlet with a continuously depressed gutter with no clogging
System.Reflection.TargetInvocationException crash when trying to open the application
Test Wiki Page - A1
Text, cells/blocks and line styles do not display correctly in a DXF background layer
The flow annotation (label) in my WaterGEMS for ArcMap isn't reflecting the value displayed in my Geotable or Flextable
The total area in the CN/Area Collection does not equal the total catchment area
Time tolerance setting in SCADAConnect Simulator
Troubleshooting ArcMap Integration
Understanding Flow (Additional Subsurface) and Flow (Additional Carryover)
Upcoming training and release dates for OpenFlows products
User notification "Downstream TW out of range..."
User notification "Pump exceeds the maximum operating point specified for the pump curve"
User Notification - The captured surface flow at this node does not connect a valid subsurface network. The flow is lost from the system.
User Notification: "There is an error in the data for this pipe. The associated data is incorrect"
User Notification: Cross section maximum elevation is above the maximum headwater elevation
User Notifications: "Pump On elevation is not in the range of upstream ...." and "Off elevation of pump is lower than ..."
Using batch pipe split to fix nodes that overlay a pipe instead of connecting to it
Using PondMaker with different tailwater for each return event
Valve "Status (Initial)" Definitions
Velocity Calculations and the Average Velocity Methods in SewerCAD and StormCAD
Viewing graph data for multiple scenarios
Water age results in a pipe are different from the age in the downstream junction
Water Loss Management
Water quality Analysis during transient events
What are the limitations of importing/exporting EPANET files?
What is the dotted line that is associated with the isolation valves? Can I turn them off?
What's new in WaterCAD, WaterGEMS and HAMMER V8i SELECTseries 6 with CONNECT Integration?
What's New in WaterOPS CONNECT Edition 2.3 (Build 10.02.03.06)
When the user changes the fluid, why doesn't the calculated pump head change?
Working From Home With Your OpenFlows Software
"An error occurred when trying to calibrate the model"
"COM Error Not Documented" when opening OpenFlows product
"Default license feature configuration not found. Product features may be limited. Please run the License Administrator."
"The Depth-Flow, Depth-Flow (Simulated Variable Speed) and Volume-Flow pump definition types are unsupported"
"Unable to assign attribute ... for element because enumeration value ... is not valid."
Add custom data to profile with User Data Extensions
After computing a model with the SWMM solver, what does the following warning mean: "Maximum depth increased for node CB-XX"?
After computing the model, the pump efficiency results are listed as N/A
After running loadbuilder I get a message that says "The layer <Layer_Name> could not be opened."
At what point does OpenFlows product license usage start when integrated with MicroStation?
Background image quality poor on some computers or Crash when opening models with background layers
Blocky stepwise pattern is displayed instead of a continous smooth pattern that was entered when using the SWMM engine
Calculating ellipse coefficients in CulvertMaster
Can User Data Extensions be shared between elements in a model?
Catch basins imported as manholes from LandXML
Change in results before turbine load rejection occurs
Conduit "Size" attribute does not appear correctly in annotations or reports
Custom quadrant curve not being recognized
Date-time based query not working
Default license configuration not retaining setting
Do inactive elements count against the license count?
Does HAMMER support initially negative pressures?
Does the friction method affect local minor loss in pipes?
Does WaterGEMS and WaterCAD report pressures as gauge pressure or absolute pressure?
Efficiency Curve vs. Wire-to-Water Efficiency Curve
Error importing a LandXML file from StormCAD into Civil 3D "A pipe or conduit had an unsupported geometry"
Error message when validating model: "Elevation (Relative) values within the Irregular shape definition must be non-negative."
Error message: "Unrecognized database format ..." when trying to open model
Error Saving: "Custom results path is invalid"
Find if pump operates off of the pump curve during an automated fire flow scenario
Flow arrows are not included in an exported DGN file when using the Save Symbology option in the MicroStation platform
Flow from pump is delayed after pump startup
GeoPak - StormCAD errors - GEOPAK runtime environment not found / Error writing GEOPAK/PowerCivil node
HAMMER error: "Zero initial head from pump (turbine). Change at least one of the heads at the pump ends of the adjacent pipes."
HEC-22 2nd edition energy loss calculations with the Implicit solver
How are "pipe sets" and "nodes of interest" used in a flushing analysis to get auxiliary results at other elements?
How can I see the amount of inflow or outflow occuring for a particular surge tank during the transient simulation in HAMMER?
How do I filter a column in my flextable using a custom query that retrieves all records with a <None> attribute?
How do I know if and when my pond is overtopping and how to quantify it?
How do I save my model files when working in the ArcMap or ArcGIS Pro platform?
How do the channel slopes and velocity effect the headloss formulas in SewerCAD and StormCAD?
How do you define the starting conditions of the transient simulation?
How does StormCAD handle gutter flow from an active catch basin to an inactive catch basin?
How does the diameter of an isolation valve effect the calculated results?
How to add comments on custom pump and turbine quadrant curves
How to find volume of water coming from a trace element?
How to open a .PRNX report file created on exporting custom report in OpenFlows product
Hydropneumatic tank atmospheric pressure not changing results
Hydropneumatic tank profile animation and time history shows zero gas volume
Initial surge when using turbine load acceptance operating case
Initial turbine HGL the same as the final HGL after load acceptance
Irregular Weir Flow Calculations in a Composite Outlet Structure
Is it possible to create old PondPack style text reports?
Is it possible to have a storm event start at a different time than the model simulation?
Is it possible to use point cloud information to populate elevations in Terrain Extractor (TRex)?
Is there a recommended level of Skelebration for different modeling conditions?
Junctions are created on top of one another after using ModelBuilder with the GIS-ID property
Learning Resource Guide for WaterSight
License usage in the ArcMap and ArcGIS Pro platform
LoadBuilder applying demands or loads to inactive elements
LoadBuilder importing zero flow loads
Log4net issues appear in security scans for OpenFlows products
Long time to load background layers
Manage Pump Speed Series
Manage Pump Time Series
Managing large number of scenarios
Missing Young's Modulus and Poisson's Ratio values in the material library
Modeling Arch section shapes in SewerGEMS
Modeling closed or pressurized pipes in PondPack
Modeling treatment for pollutants at nodes or ponds in SewerGEMS and CivilStorm
MrSid files are not available as a background layer type or an error is generated when loading MrSid files
My scenario label is not in my report preview when I run the report builder
OpenFlows Academic Books
Pipe Renewal Planner Vs OpenFlows WaterCAP
Pipes connecting to the wrong element after submodel import
Pipes not merging when using Skelebrator with series pipe merging
PondPack error: Unable to open user roster
Problems opening GEOPAK Drainage file exported from StormCAD
Purpose of the Virtual Flow Depth Calculation Option
Query, alert or formula UDX not working correctly with "=" (equals)
Red user notification, "Post engine loading process encountering unexpected data. Please rectify any validation errors and try again."
Reporting pressure available at the exact total needed fire flow
SCADAConnect in SewerGEMS
Series Pipe Merging in Skelebrator not working for pipes with zero diameter
Small difference in gutter worksheet result between US and SI units
The concentration at the stop node directly after a constituent source in a tank is decreasing rapidly
The control symbol, check valve symbol, and dashed lines connecting customer meters, isolation valves, and SCADA elements are not visible in the ArcMap or ArcGIS Pro platforms
The headloss in a pipe downstream of a parallel VSP is higher than expected
The result field "Depth (Flooding)" is listed as N/A after computing a model with the SWMM engine. Is there a way to see the depth of flooding for a node?
Translated version still showing as English
Troubleshooting ArcGIS Pro Integration
Troubleshooting making a SCADA connection to Oracle database
Troubleshooting ModelBuilder issues and errors connecting to an Oracle database
Unexpected small flow in pipes that should have zero flow
Use of the Gas Law Exponent During Initial Conditions vs. Transient simulation
User Data Extension not appearing in the Post-Calculation Processor's "Output Property" field
User Data Extensions in the Fireflow report
User Notification "More than one VSPB cannot control the same control node"
User notification when computing: IDF data is not supported by SWMM. Storm event is excluded from export.
User notification: "Conduit has a Stop control structure, but this is not supported next to the connected outfall element."
User notification: "Transition from CONCENTRATED to EXTENDED"
Using Imperial and Metric Hydro International Vortex Valves
Using US Survey feet
Warning about outlet hydrograph not cresting
WaterGEMS and WaterCAD Data Import FAQ
WaterSight - Pump Overview
Wetwell flooded warning in steady state with GVF Convex (SewerCAD) solver
What can I do to speed it up a file I need to extract elevations from is taking a long time to process in TRex?
What does Entrance Control mean?
What is the best way to model an orifice plate inside a catchbasin with surface storage above the catchbasin rim?
What is the difference between a stand pipe and an inlet box?
What is the purpose the Rainfall File, Runoff File, and RDII File in the Calculations Options?
What is the workflow for setting up pre and postdeveloped conditions for multiple return events?
What kind of demands should be used as the initial conditions of a transient simulation?
What's new in HAMMER V8i SELECTseries 6?
When running a query, why is it not picking up the elements that it should?
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.
Why are there so many extra element types listed for WaterGEMS and WaterCAD, such as surge tank, rupture disk, Periodic head-flow?
Why do I get a warning message about the rational method being used for the modified rational method?
Will SCADA Results Publishing work with only OPC sources?
Which "Tank Mixing Model" attribute should I use?
Fri, Dec 16 2022 3:27 PM
Tue, Nov 23 2021 6:29 AM
Wed, Jul 28 2021 11:12 AM
Tue, Jun 27 2017 10:35 AM
Thu, Aug 18 2016 10:22 AM
Thu, Aug 18 2016 10:21 AM
Thu, Aug 18 2016 10:20 AM
View current version
Secure File Upload
Support and Services
Subscription Services Portal
Training and Learning
About Bentley Institute
My Learning History
© 2023 Bentley Systems, Incorporated