• Running 2 pumps in parallel

    Good Morning Everyone, I am a bit new to WaterCAD. I am trying to model 2 lift station pumps with different curves running parallel and joining together before tie in into a Force main. The model is attached. I am not sure how much data to input…
  • 3 Pump Cycling

    I have a Lift Station that has two force mains and 3 pumps coming out of it. The municipality cycles between each pump through out the day. Is there a way to set up controls to switch between these 3 pumps? I currently have the model set up to cycle between…
  • Don't get flow between two lift stations connected by gravity line when one backs up (SewerGems)

    I am working on a complex dynamic wastewater model, and there is one area where there are two separate lift stations that are connected by a gravity line. When one lift station on the downstream end of the gravity line gets backed up due to high flows…
  • How to Model Lift Station / Pump Station with Float Controls?

    Hello, I am trying to model a simple pump station - aka lift station. The lift station will pump through a 4" force main that connects to an existing 12" force main. The end goal is to determine: the system curves from a high pressure situation and…
  • combination pump curve

    I am modelling a lift station by using WaterCAD, the total pumped flow is needed 345 L/s when three pumps are in duty (model is attached), the force main result shows the required flow, however; when I do the combination system head curve when three pumps…
  • SewerCAD v8i Lift station pump running nonstop

    I have two groups of student teams with this same problem: their pump is pumping nonstop, at a flowrate equal to the incoming flow to the wet well. We can increase the sanitary loadings, and voila - the pump now pumps at that new rate...