Applies To Product(s): Bentley WaterGEMS, Bentley WaterCAD Version(s): 08.11.xx.xx Environment: N/A Area: Modeling Original Author: Scott Kampa, Jesse Dringoli, Tom Walski How To: Model a Connection to an Existing System Background A connection to an existing system is typically required when modeling a proposed expansion (such as a new subdivision, industrial park, school, shopping mall, etc.). Frequently, the engineer will not have complete information on the system to which they are connecting, and must decide on an appropriate approach for modeling this connection. The most reliable method for representing the existing system is to include a least a skeletonized representation of the significant system components that affect the project area. Typically, this representation would include tanks, pumps, control valves, and significant demands in the same pressure zone. This necessary information can usually be obtained through water utility mapping and modeling personnel. Another method for modeling a connection to an existing system is to represent the connection point as a constant head elevation using a reservoir element. This is a very simplified approach, and usually a very unreliable one, since it doesn’t account for any fluctuation in head due to changing system conditions (e.g., pump status, tank level) or demands. The reliability of the method described in this article lies somewhere between the two just described. It consists of representing the connection to the existing system as a reservoir and a fictitious pump with a 3-point characteristic curve based on static and residual pressure obtained during a two-hydrant flow test near the connection point. The fictitious pump will simulate the pressure drops and the available flow from the existing water system. Unlike the first approach described, this third method does not allow the engineer to capture the changes at the connection point due to, for instance, fluctuating tank levels and pump status changes in the supply system. However, it does allow for consideration of change in head due to variation in the demand at the connection point. When combined with a good general understanding of how the larger system performs under a range of conditions and knowledge of system conditions (e.g., tank and pump status) at the time flow tests were performed, it can be an acceptable approach in many instances. It is usually most appropriate for “fill in” development where most of the customers and infrastructure are already in place as opposed to large expanses of undeveloped land at the fringe of an existing system. If model results obtained using this method are near the borderline of being unacceptable, the engineer should revert to the more rigorous first approach. NOTE: This method is only an approximation, so the results will not be as accurate as if you modeled the system back the actual source. It is also important to note that you cannot model multiple connections to an existing system. The results in such a case could be skewed and will not be viable. In order to simulate the range of pressures at the connection point for a range of flows, you must first obtain two-hydrant flow test data. To represent zero flow, you'll need the static pressure. To represent the highest flow possible through the connection, you'll need the residual pressure and flow. To convert the pressures to hydraulic grade, you will need to know the exact elevation of the residual pressure gage. This data is obtained from field tests. For more information on how to perform a field hydrant test, you may refer to section 5.2 of Advanced Water Distribution Modeling and Management . NOTE: The flows you obtain from the hydrant test must be in actual flow units such as gallons per minute, not pitot gage pressures. Equation 5.1 in Advanced Water Distribution Modeling and Management provides a conversion. Steps to Accomplish The reservoir simulates the supply of water from the system. The Elevation of the reservoir should be equal to or slightly higher than the elevation at the connection point as explained in this article . The pump and the pump curve will simulate the pressure drops and the available flow from the existing water system. The points for the pump curve are generated using a mathematical formula (given below), and data from a fire flow test. The pipe should be smooth, short and wide. For example, a Roughness of 140, length of 1 foot, and diameter of 48 inches are appropriate numbers. Please note that it is ALWAYS best to model the entire system back to the source. This method is only an approximation, and may not represent the water system under all flow conditions. Qr = Qf * [(Hr/Hf)^.54] where: Qr = Flow available at the desired fire flow residual pressure Qf = Flow during test Hr = Pressure drop to desired residual pressure (Static Pressure minus Chosen Design Pressure) Hf = Pressure drop during fire flow test (Static Pressure minus Residual Pressure) D etermining the Three-Point Pump Curve Below is an example of how the three-point pump curve is developed. This will use the flow test results from your system, but the steps below will be same once you have that data. 1. The first point is generated by measuring the static pressure at the hydrant when the flow (Q) is equal to zero. Q = 0 gpm H = 90psi or 207.9 feet of head (90 * 2.31) (2.31 is the conversion factor used to convert psi to feet of head). 2. The engineer chooses a pressure for the second point, and the flow is calculated using the Formula below. The value for Q should lie somewhere between the data collected from the test. Q = ? H = 55 psi or 127.05 feet (55 * 2.31) (chosen value) Formula: Qr = Qf * (Hr/Hf)^.54 Qr = 800 * [((90 - 55) / (90 - 22))^.54] Qr = 800 * [(35 / 68)^.54] Qr = 800 * [.514^.54] Qr = 800 * .69 Qr = 558 Therefore, Q = 558 gpm 3. The third point is generated by measuring the flow (Q) and the residual pressure of the hydrant. Q = 800 gpm H = 22 psi or 50.82 ft. of head (22 * 2.31) Pump curve values for this example: Head (ft.) Discharge (gpm) 207.9 0 127.05 558 50.82 800 Setting up the Model To set up the model, you will enter the pump curve just developed, lay out the model elements, and enter their attributes within your project area. 1. Open your model in WaterCAD/WaterGEMS (or open the existing model if you have already laid out the elements for the new system) and go to Components > Pump Definitions. 2. In the Pump Definitions Manager, click the "New" button and name your pump definition appropriately (such as "Connection"). 3. Keep the default Pump Definition Type of "Standard (3 point)" and enter your data in the table: 4. Click the "Close" button to accept the curve, which we will use further below. 5. Now lay out the elements in the model (if this is not already done). You will need a reservoir and pump, which represents the connection to an existing system. 6. To adjust the attributes of these elements, first double-click the reservoir node to open the properties grid. For the "Elevation" attribute, enter the elevation of the pressure gauge used at the hydrant. Note that the pipe connecting the reservoir to the pump which be such that the hydraulic impact is negligible. For example, a Roughness of 140, length of 1 foot, and diameter of 48 inches are appropriate values. 7. Click the junction immediately downstream of the pump. This point represents where the proposed system begins, so enter the elevation of the connection point. 8. Click the pump element and enter the pressure gauge elevation as the "Elevation" attribute, which should be slightly higher than the reservoir. Select the pump definition you created in the previous section from the "Pump Definition" dropdown. 9. Make sure the rest of the system is set of correctly and compute the model. The pump should react according to the proposed system demands to provide an approximation of head at the connection point. Assumptions and Limitations This approach is an approximation, the accuracy of which depends on a number of factors . It is better to model all the way back to the source, at least by obtaining skeletonized data on the existing system. The skeletal model must begin at the real water source(s), such as the pump or tank, which will serve as the primary water source(s) for the new extension pipes. It should be calibrated using the results of fire hydrant flow tests, especially the tests conducted near the location where the new extension will tie in. You may need to call the municipality to obtain basic information on the existing system. Using the pump approximation method can present problems because this approximation of the existing system only accounts for the exact boundary conditions and demands that existed at the time that the test was run (for example, the afternoon on an average day with one pump on at the source). Basically, the simulated connection is only valid for the conditions present during the hydrant tests. Therefore, determining the effect of changing any of the demands or boundary conditions is difficult. An extended period simulation (EPS) that is performed using the pump approximation method will be less accurate and may not provide reliable data regarding projected changes in consumption. The pump approximation approach only works well if the existing system is fairly built-out near the connection point and the demand and operation conditions are expected to remain essentially the same in the long run. The hydrant flow test is useful for predicting changes in pressure when downstream demands change, but not for evaluating other types of system changes such as the addition of new pipes, or operational alternatives such as fire pumps starting up. Modeling more than one connection between the proposed expansion and the existing system may not be a valid approach. Some reasons for this are, first, the hydrant tests were most likely done at different times, yet the model will allow water to be taken from both sources at the same time. This is not accurate because in reality, both sources will not be able to provide the full observed residual pressure when open at the same time. In other words, if hydrants or connections were really opened at both connection points simultaneously, the combined flow would result in a much reduced residual pressure at both locations versus what was observed during the independent tests. Secondly, in some cases, depending on the hydraulic grades, it may be possible for flow to enter at one connection point and exit at another. However, the pump element only allows water in the forward direction, so the pump approximation method would not work in this case (and may provide a message about one of the pumps not being able to deliver head). The situation is too complex to model using a method other that a skeletonized representation of the larger system. However, if you are modeling a system where the upstream system will not experience a significant change in pressure as a result of multiple connections flowing at the same time, or if there are separate, disconnected systems upstream of each connection point, modeling multiple connection point may be fine. As the size of the modeled system increases and the number of connection points increases, it may not be reasonable to separate the development site from the rest of the system and achieve accurate results. The interactions may be too complex. One suggestion in this case is to get together with the City water distribution engineers and discuss how to model this. Ideally you would get a copy of the City model (at least the pressure zone of interest) and build your model on top of it. Or you can get their distribution maps and build very simple skeletal model of the system. You need to model back to some real boundary condition. One, somewhat far fetched, test might be to run (assuming you have 6 connection points) 6 simultaneous flow tests. You couldn't run all the hydrants wide open (unless you have a very strong system) without lowering the pressure too much. So, if your demand is 1800 gpm for example, you could run 300 gpm at each flowed hydrant. This isn't as good as running a model of the full pressure zone but at least it gives you an idea of what a 1800 gpm demand will do to the City system. Attempting to compute the 'static' (no demand) conditions of the new model with the pump approximation in place will most likely result in an unbalanced simulation . In this case, you may need to model the connection simply as a reservoir with an elevation equal to the pressure gauge elevation and static pressure head (i.e., the static HGL), or simply manually compute the static pressure at each node by taking the difference between the static HGL and the node physical elevation.
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Wiki Page: Modeling a Connection to an Existing System
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Forum Post: RE: Ladxml SewerGems export to Civil3D doesn't have EGL
Hamid, I took a look at this with Sushma. As Sushma said, the main purpose of the LandXML import/export is to exchanges physical data. If you look at the Help topic called "LandXML Attribute Mapping", you'll see confirmation that only the Hydraulic Grade is exported (not the EGL as well). With that said, I went ahead and logged this as Enhancement # 210239 for our product management team to consider exporting EGL in a future release. If you're interested in viewing the energy grade line in an external product such as Civil3D, you can create profiles and export those to DXF format. More on that here: communities.bentley.com/.../7829.exporting-profiles-to-dxf-files
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Wiki Page: Exporting profiles to .DXF files
Applies To Product(s): Bentley StormCAD, Bentley SewerCAD, Bentley SewerGEMS, Bentley CivilStorm Version(s): 08.11.xx.xx Environment: N/A Area: Other Subarea: Original Author: Scott Kampa, Bentley Technical Support Group Task A user would like to open and view a profile in AutoCAD. Background Sometimes a user may want to do some additional formatting to a profile for reporting purposes. When this is needed, the profile can be exported to a .DXF file. Steps to Accomplish To export profiles (and models in general) to the .DXF format, use the following steps. First, open a profile or engineering profile. For the standard profile, choose the Chart Settings button in the upper right of the profile and choose "Export to DXF". For the engineering profile, click the Tools button, also in the upper right, and choose "Export to DXF". Once you name and save the DXF file, you will be able to open the .DXF of the profile in AutoCAD. Note : if you would like the Energy Grade Line (EGL) to be included in the DXF, ensure that it is turned on. For "standard" profiles click the options button in the upper left corner and ensure that the EGL option is checked: For Engineering style profiles, click the Tools button in the upper left corner, click Options, click the Layers tab and make sure Energy Grade is checked:
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Forum Post: RE: Different values for Depth (in), Depth (Middle) and Depth (Out)
Hello, I don't see the model file you are referencing. However, this is likely working as expected. As Tom noted above, even with the flow being uniform, the flow depth and velocity may be different based on the system. This is how gradually varied flow works. The flow is the same, but the depth may be different. The program will use Gradually Varied Flow (backwater) calculations to solve for the depth in a conduit. You can find more information on Gradually Varied Flow in the Help documenation and in section 7.8 of the Stormwater Conveyance Modeling and Design book: www.bentley.com/.../SCMD.htm While the model files are not explicitly needed since your description of the issue is good, if you need to upload the model, there are two options for sharing your model files on Communities. If you would like the files to be visible to other members, compress the files into a zip file and upload them as an attachment using the ‘Advanced Reply editor’ before posting. If your data is confidential, you can follow the instructions in the link below to send it to us via Bentley Sharefile. Files uploaded to Sharefile can only be viewed by Bentley. communities.bentley.com/.../7079.be-communities-secure-file-upload Please post here with the name of the file so we know it is available. Regards, Scott
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Wiki Page: On a Windows 7 64-bit computer with 64-bbit Microsoft Office - After opening WaterCAD, user cannot close out the program. Gets the follwing error:System.TypeInitializationException: The type initializer for'Haestad.Domain.LibraryObjects.EngineeringLibr
Applies To Product(s): Bentley WaterCAD Version(s): 08.11.03.17 Environment: N\A Area: Modeling Subarea: N\A Original Author: Terry Foster, Bentley Technical Support Group Problem On a Windows 7 64-bit computer with 64-bit Microsoft Office - After opening WaterCAD, user cannot close out the program. Gets the following error: --------------------------- TypeInitializationException Details --------------------------- Press Ctrl-C to copy details to clipboard: System.TypeInitializationException: The type initializer for 'Haestad.Domain.LibraryObjects.EngineeringLibraryService' threw an exce ption. ---> System.Runtime.InteropServices.SEHException: External component has thrown an exception. at DAO.Workspace.CreateDatabase(Workspace* , _com_ptr_t * , _bstr_t* Name, _bstr_t* Connect, _variant_t* Option) at CDaoDatabase.CreateDatabase(CDaoDatabase* , _bstr_t* filename, SByte* locale) at Haestad.Domain.DaoInterop.DaoDatabase.CreateDatabase(String fileName, CultureInfo locale) at Haestad.Domain.LibraryObjects.JetAppSettings.OpenRegistryDatabase(String fileName) at Haestad.Domain.LibraryObjects.EngineeringLibraryService.OpenImpl() --- End of inner exception stack trace --- at Haestad.Domain.LibraryObjects.EngineeringLibraryService.Close() at Haestad.Framework.Application.DomainApplicationModel.Stop(ProjectProp erties app) at Haestad.Framework.Application.HaestadParentFormModel.StopApplication( ProjectProperties app) at Haestad.Framework.Windows.Forms.Forms.HaestadParentForm.HandleStopEve nt(Object aobjectSource, EventArgs aeventargs) at System.EventHandler.Invoke(Object sender, EventArgs e) at System.Windows.Forms.Form.OnClosed(EventArgs e) at System.Windows.Forms.Form.WmClose(Message& m) at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message & m) at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam) --------------------------- OK --------------------------- Product: WaterCAD V8i Version: 08.11.03.17 Area: Installation, Problem ID#: 71610, ERRORMESSAGE Solution Uninstall old Microsoft Access Engine 2007 program. See Also
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Wiki Page: Default license configuration not retaining setting (Solution 500000073599)
Applies To Product(s): BENTLEY WATERCAD Version(s): 081.11.01.32 Environment: N\A Area: Licensing Subarea: N\A Original Author: Mark Pachlhofer, Bentley Technical Support Group Problem When attempting to set the default license to one configuration, for example (WaterCAD 500 pipe, AutoCAD, Microstation), then closing and then returning to the Municipal License Administrator (MLA) tool, the license defaults back to the other WaterCAD configuration or no default license configuration appears, for example, (WaterCAD 200 pipe, Microstation) has the ">>>" next to it in the default column. Why? Product: WaterCAD, WaterGEMS, StormCAD, SewerGEMS, CivilStorm, PondPack, SewerCAD Version: 081.11.01.32 Area: Licensing, Problem ID#: 49014, PROBLEMSOLVING See Also: Default, Setting Default, License Management Tool, LMT, Municipal License Administrator, MLT, Making Default, Default License Solution This can occur if you have two or more different license configurations for your site but, one is checked out to the computer that you are trying to change the default license configuration for. In order to fix this problem you need to go into the License Management Tool (LMT) and check the license back in for the user. [Note: SELECT customers don't need to check out licenses to use the software. The program will perform the check in/check out process automatically for you as you open and close the software. ]
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Wiki Page: When attempting to open an old modelconsisting of a .wcd and .mdb file in V8i, the following error occurs: "Unrecognized database format". (Solution 500000089154)
Applies To Product(s): Bentley WaterCAD Version(s): 08.11.XX.XX Environment: N\A Area: Modeling Subarea: N\A Original Author: Jesse Dringoli, Bentley Technical Support Group Problem When attempting to open an old model consisting of a .wcd and .mdb file in V8i, the following error occurs: "Unrecognized database format" Product: WaterCAD, WaterGEMS Version: 08.11.XX.XX Area: General, Problem ID#: 72717, ERRORMESSAGE Solution This could be due to database corruption. Try opening the .mdb file in Microsoft Access. If Access cannot open it, the database is corrupt. If you have the automatic backup (a .mdk file with the same base file name), try moving that to a new folder, rename the file extension to .mdb, then try importing it in V8i via File > Import > Database. See Also
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Wiki Page: Is Bentley Navigator on top of iPad able able to view WaterCAD models? (Solution 500000085393)
Applies To Product(s): Bentley WaterCAD Version(s): 08.11.03.17 Environment: N\A Area: Modeling Subarea: N\A Original Author: Jesse Dringoli, Bentley Technical Support Group Problem Is Bentley Navigator on top of iPad able to view WaterCAD models (including data)? Product: WaterGEMS, WaterCAD, HAMMER Version: 08.11.03.17 Area: Output/Results Presentation, Problem ID#: 66813, GENERALINFORMATION Solution No, Bentley Navigator for the ipad does not currently support i-models, so you will not be able to directly open an i-model exported from WaterCAD/WaterGEMS to see the plan view and attributes. However, you can convert the i-model to a "panorama", which Bentley Navigator for the ipad uses. The problem is that you'll need to navigate the model in 3D in order to tap to view attributes, which is not not a very convenient way to work with a linear network like a water model. In the future, we may have an easier way to view your model on an ipad. At the moment, you may consider exporting your model to shapefiles, then use a 3rd party application to view them on the ipad. To export to shapefiles, create a flextable for each element type that you need to export, then use the yellow Edit button to include only the attributes that you're interested in. Then, click the export button at the top-left corner and provide field names for each attribute. We tested one application called SHP (free download) and it seemed to work well at displaying the exported shapefiles from WaterCAD/WaterGEMS along with the attributes. There may certainly be other applications available for this. See Also
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Wiki Page: How to enter demands for the "Discharge to Atmosphere" element? (Solution 500000070964)
Applies To Product(s): Bentley WaterCAD Version(s): 08.11.01.21 Environment: N\A Area: Modeling Subarea: N\A Original Author: Nancy Mahmoud, Bentley Technical Support Group Problem How to enter demands for the element "Discharge to Atmosphere"? Product: WaterCAD, WaterGEMS Version: 08.11.01.21 Area: Modeling, Problem ID#: 44785, GENERALINFORMATION Solution Although this element is primarily used in Bentley HAMMER, you can still model demands using it in WaterCAD and WaterGEMS. In WaterCAD and WaterGEMS, the demand at this node is modeled based on a pair of "typical flow" and corresponding "typical pressure drop". So, this element can be used if your demand can be entered as a pair of flow and corresponding pressure, which in internally converted to an orifice coefficient, used to calculate different outflows (demands) based on changes in pressure. Alternatively, you can enter a fixed demand on a junction element, a pressure dependent demand using a junction (with a PDD function) or a junction with an emitter coefficient. See Also
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Wiki Page: In the pump station what do the dashed lines coming from the pumps mean? (Solution 500000075996)
Applies To Product(s): Bentley WaterCAD Version(s): 08.11.02.31 Environment: N\A Area: Modeling Subarea: N\A Original Author: Mark Pachlhofer, Bentley Technical Support Group Problem In the pump station what do the dashed lines coming from the pumps mean or indicate? Product: WaterCAD V8i SS2 Version: 08.11.02.31 Area: General, Problem ID#: 52828, GENERALINFORMATION See Also: pump station, pump, pumps, dashed line, dotted line Solution This line indicates that the pump connected to it is associated with the pump station at the other end.
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Wiki Page: When attempting to install a cumulative patch set, the following error occurs: "Cannot create output file: ..." (Solution 500000077860)
Applies To Product(s): Bentley WaterCAD Version(s): 08.11.XX.XX Environment: N\A Area: Modeling Subarea: N\A Original Author: Jesse Dringoli, Bentley Technical Support Group Problem When attempting to install a cumulative patch set, the following error occurs: "Cannot create output file: ..." Product: WaterCAD, WaterGEMS, HAMMER, StormCAD, SewerCAD, SewerGEMS, CivilStorm, PondPack Version: 08.11.XX.XX Area: Installation, Problem ID#: 55718, ERRORMESSAGE Solution a) The file is in use because the Haestad product is open. Be sure to first close the Haestad product, along with AutoCAD, ArcMap and/or Microstation if you integrate with them. b) You are using Windows Vista or Windows 7 for your operating system, in which case you need to run the patch as administrator. Right click on the patch executable file and choose "run as administrator". Please note that the cumulative patch set needs to be applied to the correct version, otherwise you will corrupt your Haestad product installation. Be sure that the version number of your Haestad product (seen under Help>About) matches that of the patch set.
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Wiki Page: Can you sync out an maintain all the changes you make in a DXF file in AutoCAD the same way you can with a geodatabase file in ArcGIS through modelbuilder? (Solution 500000091959)
Applies To Product(s): Bentley WaterCAD Version(s): 08.11.03.19 Environment: N\A Area: Modeling Subarea: N\A Original Author: Mark Pachlhofer, Bentley Technical Support Group Problem Can you sync out and maintain all the changes you make in a DXF file in AutoCAD the same way you can with a geodatabase file in ArcGIS through modelbuilder? Product: WaterGEMS V8i Version: 08.11.03.19 Area: Data Input/Model Creation, Problem ID#: 76808, PROBLEMSOLVING See Also: dxf, modelbuilder, model builder, .dxf, syncing out, sync out Solution No, DXF files don't support the sync in and sync out feature like geodatabase do through modelbuilder.
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Wiki Page: How can I look at a system head curve for a variable speed pump battery (VSPB)? (Solution 500000093086)
Applies To Product(s): Bentley WaterCAD Version(s): 08.11.03.19 Environment: N\A Area: Modeling Subarea: N\A Original Author: Jesse Dringoli, Bentley Technical Support Group Problem How can I look at a system head curve for a variable speed pump battery? ( VSPB ) No system head curve option available on the right click menu for a VSPB. Product: WaterGEMS, WaterCAD Version: 08.11.03.19 Area: Modeling, Problem ID#: 78521, PROBLEMSOLVING Solution 1) Select the pump station layout tool 2) Draw a rectangle polygon around the VSPB 3) In the VSPB properties, choose the pump station from the "pump station" field 4) Right click on the pump station polygon and choose "combination pump curve" 5) Click the check box for system head curve, enter the parameters and click the green arrow to compute. See Also
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Wiki Page: When attempting to open WaterCAD/GEMS in AutoCAD, the following error occurs: Exeption in C:\Program Files\AutoCAD Civil 3D 2010\AeccDbMgd.dll ARX Command (Solution 500000082041)
Applies To Product(s): Bentley WaterCAD Version(s): 08.11.XX.XX Environment: N\A Area: Modeling Subarea: N\A Original Author: Jesse Dringoli, Bentley Technical Support Group Problem When attempting to open WaterCAD/GEMS in AutoCAD, the following error occurs: Exeption in C:\Program Files\AutoCAD Civil 3D 2010\AeccDbMgd.dll ARX Command Unhandled Exception Product: WaterCAD, WaterGEMS Version: 08.11.XX.XX Area: General, Problem ID#: 61669, ERRORMESSAGE Solution Close AutoCAD and go to Start > Programs > Bentley > WaterCAD/WaterGEMS > Integrate WaterGEMS with AutoCAD-MicroStation-ArcGIS If this does not help, try doing a repair on the WaterCAD/GEMS installation, from Control Panel > Add/remove programs. See Also
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Wiki Page: When I import my EPANET file (.INP) into WaterGEMs/WaterCAD the units are not coming in with the units I would like. How do I fix this? (Solution 500000088434)
Applies To Product(s): Bentley WaterCAD Version(s): 08.11.XX.XX Environment: N\A Area: Modeling Subarea: N\A Original Author: Mark Pachlhofer, Bentley Technical Support Group Problem When I import my EPANET file (.INP) into WaterGEMs/WaterCAD the units are not coming in with the units I would like. How do I fix this? Product: WaterGEMS V8i Version: 08.11.XX.XX Area: Data Input/Model Creation, Problem ID#: 71611, GENERALINFORMATION See Also: EPANET, .INP, .INP file, units Solution Open the .INP file up in EPANET. Go to Projects > Defaults and then set the flow units on the hydraulics tab to the unit that you would like to use which corresponds to the US customary or System International units that you want. These flow control units control the all the rest of the unit that your model uses in EPANET. Once the units are set correctly click the OK button. After you do this you will need to go to file > Export > Network and resave the file. Now if you import the file in WaterCAD/GEMS the units should come in correctly. See Also
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Wiki Page: When attempting to open an existingproject or create a new project, an internal error occurs: at Haestad.Drawing.Windows.Forms.Components.GLDrawingControl.DrawingToolManager_ToolChanged(Object aobject, ToolChangedEventArgs e) (Solution 500000083820)
Applies To Product(s): Bentley WaterCAD Version(s): 08.11.03.17 Environment: N\A Area: Other Subarea: N\A Original Author: Jesse Dringoli, Bentley Technical Support Group Problem When attempting to open an existing project or create a new project, an internal error occurs, with the following details: NullReferenceException Details --------------------------- Press Ctrl-C to copy details to clipboard: System.NullReferenceException: Object reference not set to an instance of an object. at Haestad.Drawing.Windows.Forms.Components.GLDrawingControl.DrawingT oolManager_ToolChanged(Object aobject, ToolChangedEventArgs e) at Haestad.Drawing.Tools.ToolChangedEventHandler.Invoke(Object aobject, ToolChangedEventArgs e) at Haestad.Drawing.Tools.DrawingToolManager.OnToolChanged() at Haestad.Drawing.Tools.DrawingToolManager.set_CurrentTool(IDrawingTool value) at Haestad.Drawing.Control.Forms.GraphicalDrawingParentForm.UseLayout Tool(ButtonItem abaritem) at Haestad.Drawing.Control.Forms.GraphicalDrawingParentForm.UseLayout Tool(MenuButtonItem abarItem) at Haestad.Drawing.Control.Forms.GraphicalDrawingParentForm.menuButto nItemDrawingElement_Activate(Object sender, EventArgse) .... Product: WaterCAD, WaterGEMS, HAMMER Version: 08.11.03.17 Area: General, Problem ID#: 64390, ERRORMESSAGE Solution This error may be caused by a faulty video card driver. This issue has been known to occur with ATI FireGL V3100 video cards, with driver version 6.14.10.6451 To resolve this issue, try updating your video card driver from the manufacturer's website. See Also
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Wiki Page: When opening Excel, the following error appears: The customization assembly could not be found or could not be loaded. Could not load file or assembly waterobjects.net.idse, version 1.0.1.0 (Solution 500000081265)
Applies To Product(s): Bentley WaterCAD Version(s): 08.09.400.34 Environment: N\A Area: Other Subarea: N\A Original Author: Nancy Mahmoud, Bentley Technical Support Group Problem When opening Excel, the following error appears: The customization assembly could not be found or could not be loaded. Could not load file or assembly waterobjects.net.idse, version 1.0.1.0 Product: WaterCAD, WaterGEMS V8 XM Version: 08.09.400.34 Area: General, Problem ID#: 60528, ERRORMESSAGE See Also: Microsoft Office, WaterObjects.net Solution Find and delete the following file: WaterObjects.NET.IDSE.xls See Also
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Wiki Page: When trying to export junctions to shapefile or csv using the export button in the junction flextable, the following internal error occurs: System.NullreferenceException: Object reference not set to an instance of an object at Haestad.framework.adapting.co
Applies To Product(s): Bentley WaterCAD Version(s): 08.11.01.32 Environment: N\A Area: Modeling Subarea: N\A Original Author: Jesse Dringoli, Bentley Technical Support Group Problem When trying to export junctions to shapefile or csv using the export button in the junction flextable, the following internal error occurs: System.NullreferenceException: Object reference not set to an instance of an objects at Haestad.framework.adapting.collectiondomainfielddefinition.collection countat(int32 aintindex) ... Product: WaterCAD, WaterGEMS Version: 08.11.01.32 Area: General, Problem ID#: 61705, ERRORMESSAGE Solution This may be due to invalid valied for the "demand collection" field. If this field is included in your flextable when you try to export, try removing it by clicking the yellow edit button, selecting it from the right side, then clicking the single arrow button pointing to the left side. Most likely you don't need to include this field in the export anyways. If you need to know the total demand, look at the "demand" field. if you need to know how many demand entries are in each junction, use the "demand collection count" field. See Also
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Wiki Page: How do I move my model file on top of a background file in the standalone application? (Solution 500000086245)
Applies To Product(s): Bentley WaterCAD Version(s): 08.11.XX.XX Environment: N\A Area: Modeling Subarea: N\A Original Author: Mark Pachlhofer, Bentley Technical Support Group Problem How do I move my model file over to my background file in the standalone application? Currently, they are in completely separate locations when zoom extents. Product: WaterCAD V8i Version: 08.11.XX.XX Area: General, Problem ID#: 68168, PROBLEMSOLVING See Also: aligning model file with a background file, aligning model and background file, model alignment, background alignment, standalone Solution Please follow the steps below to perform this task in our standalone applications: 1) First if the background file is not added in you model then add it in. 2) Now do a zoom extents (View > Zoom > Zoom Extents) so we can see where both files are on your drawing pane. The files may just look like pixels on your screen because they are very far apart. 3) Go to Edit > Select All. This will select all the elements in your model. After you do that the elements will highlight in red or whatever color your selection is set up for. 4) Now what you need to do is left click and hold on your model. Once you do this you should be able to drag it over to the location of your background file. It may take a few tries to get it lined up doing this. If you have any questions please contact techical support. See Also
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Forum Post: RE: Different values for Depth (in), Depth (Middle) and Depth (Out)
Thanks Scott for the explanation regarding the profiles. Regards, Indranil Basu
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