• WaterGems: Pump controls based off volume pumped, any ideas?

    We have two water pump stations both pumping to an elevated reservoir with the same on/off relative levels, however, PS1 system is fed from elevated reservoir and only needs boosting during peak flows, while PS2 system is fed via a large ground reservoir…
  • WaterGEMS Tank Controls to Fully Refill Tank Model Problem

    Hi All, I am working on a fairly basin WaterGEMS model that includes a tank. Based on the junction demands, the tank HGL reduces over time. I have a control set where the tank will start to refill when the HGL has dropped by 5 feet. The tank will…
  • Alternating Lead/Lag Pumps

    Hello, I am modeling an existing water system in WaterGEMS and I am having trouble implementing the scenario that is used in the existing system. Currently they have 3 pumps in a Lead/Lag system that turn on based on the HGL of the water tower. One…
  • Feature requests

    Background: I am a consultant specializing in water distribution modeling and have been using both WaterGEMS and InfoWater regularly for 9 years. I am therefore, very familiar with the strengths and weaknesses of both platforms. All of these requests…
  • Import Controls from Modelbuilder

    Hi, I have site data for PRV's in my model. For flow modulated PRV's I have data such as; PRV-1 Pressure Flow 35 m 5 l/s 38 m 10 l/s 41 m 15 l/s 44 m 20 l/s and for the time modulated PRV's I have…
  • Re: Modeling Groundwater Wells

    Junos: I just have a small technical followup to Tom's excellent suggestions. If you want to turn any element on/off in the model, you need to use the Controls, which can be edited through Components > Controls in the menu. You'll need to set up…
  • Re: Alternating two pumps in WaterCADV8XM

    Hello, There is no direct way to do this, but if you're creative, you may find a way. For example, you could set up your controls such that when Pump A turns on, it also changes the status of a 'dummy' pipe to closed. The condition to turn it on…
  • Re: WaterGEMS/CAD v8i - Managing Controls

    Hello Jack, It's technically possible to do this, using Modelbuilder. As you mentioned, there is some complexity to the relationship between conditions, actions and controls, which means this can be quite involved. Basically you would need to Sync…
  • Re: How WaterGems manage controls for Extended Period Simulation EPS analysis?

    Hi Alex, The short answer is that WaterGEMS inserts intermediate time steps as required so that controls are properly modeled. For example, if your WaterGEMS calculation time step is 1 hr, but you have a tank that will empty to a 'pump on' level…
  • Re: Pump ON and OFF at different levels in Bently Water CAD

    Hello Marek, Your controls don't work because as soon as the level falls below 302.5 and the pump turns on, it immediately fills above 302.5, triggering the Else statement to turn it off. To see a typical example of the controls you're trying to use…