• Assigning elevations using TRex in WaterGEMS

    Hello Bentley Community, I have an already existing model and I realized that a lot of junctions and hydrants have wrong elevations. I have an updated shapefile with correct elevations. Is there a way to just import the elevations from this shapefile…
  • Please, How Can I know the pressure at other junctions while performing fire flow analysis when opening a specific hydrant ?

    Please, How Can I know the pressure at other junctions while performing fire flow analysis when opening a specific hydrant ?
  • Re: EPAnet modeling

    Sounds like you are going through some of the usual teething troubles people have when they start to do hydraulic modeling. We should be able to help you out there, but first a couple of questions about your overall design: 1. If you close the pipeline…
  • 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…
  • Water modeling - flows passing through a closed pipe

    I am attempting to model a connection an existing distribution system. The goal is to supply two houses with drinking water and fill tanks for fire flows. What I have done is brought the water to the housing complex, then one line proceeds to the houses…
  • Hydrants VS Junctions. Pros and Cons

    Hi All, I have been searching this forum, the V8i Users Guide and trying to figure out what the benefit of using Hydrant Elements is. I am new to WaterCAD but have gone through the tutorials and have completed constructing a decent size model. My junction…
  • 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…
  • Unusual Flow Results

    I'm getting some unusual results and am unable to find a solution. I'm trying to better calibrate our model near an area where 2 pressure zones meet. I've performed a fire flow analysis and tried to confirm the pressures and flow in that area. A flow…
  • Re: Watercad - Looped System Modeling

    Great answers Kim, I have a few approaches to add - first let me rank the approaches in preference. 1) The full model with all controls is always best to determine the most accurate performance (this involves a good deal of set up, controls, and…
  • Is there any difference on location of fire hydrant in the model?

    Hi, while building my model in WaterCAD a question arised. Is there a big or any difference at all if you put your fire hydrant over your main pipe or add an extra pipe coming off of your main pipe to the fire hydrant? The idea is as follows. I…