• Darwin Designer help in Water GEMS

    Hi every body, I've attached a WaterGEMS ss2 file that I want design with Darwin Designer, It's a small village. Also I should say it's in Metric units. I tried to design network with this limitations: 0<V<2 (m/s) 10<P<60 (m.H2O) But I could…
  • 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 …
  • Re: Tank Overflow

    Point to add about Tank Overflows...tanks in operation that overflow, do so quietly, silently and often without notice unless someone happens upon a flowing stream where there should be non or perhaps a mass balance of a system or the tank inflow/outflow…
  • FCV Patterns

    Besides using a negative demand with a flow pattern at a junction, is there a way to model a fixed head reservoir with a downstream flow control valve and apply a specific flow pattern to the FCV? I am trying to simulate flow into a distribution system…
  • 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…
  • Pressure field results NOT matching the WaterGEMS Model results .. Why? !!

    Hi to all .. I am student, and I am new WaterGEMS V8 XM user, have a problem regad to matching the pressure field results with the pressure model results. As you see below, this is a small water network, the PE pipes length - from node to node …
  • 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…
  • WaterCAD age calculation fails

    I have run into a recent problem. I've been trying to do a age calculation on our water system and for some reason the largest duration I can calculate is 128 hrs. If I change it to 129 hrs the calculation fails and I get an error: Calculation Engine…
  • SCADA Connect Capabilities

    Hello, I am a civil/ environmental enginner working as a consultant. I am trying to find out if WaterGems is sufficient and covers all the specifications a possible client (water utility) is asking for. Can SCADA connect also collect and visualize…
  • Changing Length (Scaled) in water cad v 8i

    Can we change the setting Length (Scaled) m to normal custom length m . (Where we can enter our own length values). U can see the picture to get clear Idea. Thank You
  • Distribution Sytem Wide Hammer and Transient Analysis of RPZ

    I am attempting to set up a model to demonstrate how a RPZ (Reduced Pressure Principle Backflow Preventer) will respond to Hammer. For those unfamiliar with the operation of an RPZ, I have attached a document which outlines this very well. …
  • 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…
  • SewerCAD/GEMS and SCADA Connect

    Hello everybody, Does anyone knows if SewerCAD/GEMS supports connection with data of a SCADA system through SCADA Connect? Thanks Bill Prassas
  • Re: Darwin Calibrator

    Didi, can you help out with some clarification on your question, are you working out a workshop and trying to get the results that are part of the workshop? or Calibrating using Darwin Calibrator for an actual system? If you are Calibrating for a real…
  • Tank and end connections

    Hi, How to draw a pipe layout . The case is "a Pump pumps in water from a underground tank to a tank on a building". Now as in water cad we insert a tank on the building and connect it to a pump and inturn connects to the U/G tank. BUT we have to provide…
  • Re: modelling with 2 fire events

    Grgulla, Briefly, you mentioned it was a requirement to model 2 fire events - understood that it is a requirement - a bit conservative but I wanted to mention a few other points to consider when modeling 2 fires simultaneously- This will obviously drive…
  • WaterCAD Connection from the City

    Dear Bentley Community I'm drawing a WDS for a state park using the latest version of WaterCAD. One pipe is connected to the nearest city and there is pressure of 30 psi at the connection. What should I use to mimic this city connection so that…
  • 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…
  • 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…
  • Re: Fire flow on existing system

    Matt, Do you have the system completely modeled? meaning are you modeling all the way back to known boundary conditions (tanks, pumps, etc) or just a skeletal system of the model? With respect to the layount, just make sure you are modeling…
  • model output showing areas with leaks?

    Hello, I am responding to an RFP for a water distribution system evaluation which includes water modeling and calls for (among other things) "outputs from the model should include ... areas with leaks". I am not aware of a way to use WaterCAD to…
  • Re: documenting modelling process

    Platy, As a suggestion, the training manuals that are provided during the Haestad training courses are fairly robust and provide a large number of available parameter ranges, and good discussions on the expected results. I also found another good modeling…
  • Very high energy cost

    Hi , I run a water distribution system in Watergems V8i and the energy cost results are very high values. What changes could i make to my system in order to decrease the energy cost? I want to have an energy cost of 5,6 *10^6 $ for 20 years and my…