• WaterCAD UDF Flushing simulations velocity

    When running WaterCAD UDF Flushing simulations, when I isolate out a pipe section in the network, why do other pipes in the network still have flow even though there is theoretically no source?
  • How to perform Demand Driven Analysis?

    Please Explain with Full Example.
  • How to perform gravity driven analysis in watergems?

    How to design a network based on gravity driven analysis. Basically pipe should be in partial flow.
  • Calibração de rugosidade

    É possível calibrar o coeficiente de rugosidade de um modelo hidráulico de uma rede de distribuição de água no período?
  • how to find wall thickness and class of Galvanised iron pipe?

    can i find wall thickness in watergems or i have to take the help of hammer. how to design the pipe for particular grade( like mserw grades (grade a or grade b or X42)) or class (like Gallvanised iron (light , medium and heavy class) in watergems…
  • trex not updating elevtion of customer meter and isolation valve

    Iam using landxml file as dataset and X-Y unit are in meter and z unit is in meter as in land xml dataset but its showing error as shown below in image attached.
  • How can the WaterGEMS determine pipe diameter automatically based pressure and velocity constraint on optimization by Darwin designer but i'm not having costs of pipe?

    darwin designer is asking for cost of pipe.
  • 1. How can there be a flow supply without any flow demand? Can anyone help pe learn about it?

  • Low pressure and high velocity

    Hi, I am a doing modelling for improvement of the existing system. Many location velocities are high and pressure is low. Even I tried to increase the pump capacity the pressure is not increased. Please check the model in the below following link…
  • No Flow in tank Top inlet fill

    Hi, I have another issue in the model, If you check the T-1 inlet it was connected as a top inlet. When I run the simulation for avg daily demand I don't have any issue. However, when I run the same model with Max daily demand scenario (Peak factor…
  • watergem failed to validate model. the model may be corrupt or contain incomplete information

    Hi, I have an issue validating this water gem file. Even I am using the latest version of water gem update 210.02.01.06 64-bit it is still showing the same error. Please let me know how to fix this error. I have uploaded the file in the below wetransfer…
  • WaterGEMS stops responding during the final step of Criticality Analysis.

    I am running a criticality analysis where I perform the segmentation by computing the analysis. It works great. Next, I click on Criticality and select the "Run Hydraulic Engine" option and put minimum pressure at 30 psi. Then, when I click the compute…
  • How to model discharge to atmosphere point

    HI, I'm working on my college project (The project is a plumbing system to drain a 1-m3 tank in the shortest time ). I use the discharge to atmosphere element at the end of the project but I'm really confused with this element's input data like [Flow…
  • WaterGems VSD Pumps in Parralel and error message 41797

    I am using Watergems V8i series 3, and trying to model a pump station with two identical VSD pumps in parallel. When I set the pumps up in parrallel, i.e. by just making them have a common node on either side of the pumps, the system balances but only…
  • Water Distribution Modeling Software Survey

    Hello, If you have a few minutes please fill out this short survey to help the Bentley Institute Geospatial team create better training that is more suited to the workflow of our users. http://www.surveygizmo.com/s3/568508/Water-Distribution-Modeling…
  • WaterCad Select Series 2 Copy Graph Data Problem

    I am having problems with copying data from the graph data tab. My problem is that when I copy all the data the header row is not copied. So when I paste in excel I have no idea what the data in each column represents. This woudn't be a problem if WaterCad…
  • Help: Modeling multiple operational modes in Water GEMS

    Hi folks, I'm working on a model for a water distribution system that has two different operational modes. The equipment operates on different set-points in each operational mode. There are two pressure zones in the system: Zone 1 (with the water…
  • WaterCAD for Reclaimed Water

    Any suggestions on how to model a reclaimed water system that delivers water to multiple (bulk) storage ponds? Each pond has a level control and a pressure staining valve. Is there a way to simplify this model, I can't justify trying to model all the…
  • Darwin Calibrator Inactive Elements

    I'm fairly new to the software and have been going through the on demand courses. I have a decent understanding of how Darwin Calibrator works but I'm struggling with one thing. I have numerous inactive pipes in my model. Typically these are either…
  • Initial conditions,KNOWN water level in the tank in every time step

    Regards to all. The existing water supply network belongs to III elevation zones of much larger water supply system and ends with the tank of III elevation zone. It is necessary to design new water supply network of IV elevation zone. In the…
  • Average Demand Calculation and Fire Flow

    My model is fine and everything works fine however the design criteria for demand is 2.1 multiply by the average demand + Fire Flow (as indicated in the snapshot) I have setup the Scenarios and alternative for this criteria based on the BASED DEMAND…
  • Constituent Analysis data requirements

    Hi! I'm currently exploring WaterGEMS use in modelling Chlorine concentration across the network. I have no degree in Chemistry but I'd appreciate it if anybody can tell or direct me to literature in deriving the required data from the site. …
  • cannot control the flow stored

    Hi I am designing a water supply system of a city in which I am using 14 pumps to supply water to 6 tanks and from each tank the water is supplied to junctions. Both junctions and pumps have different patterns. I am facing following problems …
  • WaterGEMS - Variable Speed Drive

    Dear Bentley I am trying to Model a VSP pump and I am using WaterGems V8i (Select Series 3) I want to model a a situation where I got a pump which is greater than the required capacity . So I am planning on using a variable speed system to reduce…
  • WaterCad Select Series 2 Unidirectional Flushing - No Option for Pressure Constraint

    The newer version of WaterCAD Select Series 2 seems to have removed the option to specify a pressure constraint for flushing alternatives. I don't know when this was removed, but for me it would be very useful to specify a pressure constraint. The…