• Hydraulic Analysis on Agriculture Irrigation System

    I have a short agricultural irrigation system (a main) that provides water to farmers. The head of the system is a canal with a structure that provides a constant head of water elevation during the season. There is no pump to deliver water to the customers…
  • Maximum reverse flow in a pump

    Hello, I am using Bentley HAMMER to model a pump system that pumps water from a reservoir at low head to a reservoir at high head. The difference in head between the two reservoirs is approximately 600 ft. I am trying to study the transient effects…
  • SewerGems - Sag Inlet Modeling

    Hello, I am working on a project using SewerGems, as required by the client. We are semi-new to the software, but have a model built and looking for some guidance on how to efficiently model sag inlets. We currently have the subcatchment routed to a…
  • SewerGEMS Isolation Valve

    I am modeling a sewer system that is a combination of gravity pipes and forcemains. Some of the forcemains have isolation valves that can be closed to route the flow differently. However, SewerGEMS does not have the isolation valve feature. How can a…
  • Bentley OpenFlows SewerCAD & SewerGEMS Online Training

    IFS Academy is Bentley Institute Authorised Product Training and regularly organises Bentley OpenFlows SewerCAD & SewerGEMS Online Trainings . Please click on the link given below for further information. https://ifsacademy.org/bentley-sewercad-sewergems…
  • 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…
  • Can I connect a lift station to pond in SewerCAD?

    Hi, I'm modelling a simple treatment system to determine the hydraulics between each component of the system. In a particular section of the model, I am pumping from a wet well up to a lagoon. Is there a way I can connect a pressurized pipe to a pond…
  • Hydrogen Sulfide Modeling in Sewergems

    Dear Folks , I have run a model with Hydrogen sulfide analysis , after made the analysis i got the result for H2s in and out concentration , my question is : do we have a limit for H2S concentration in sewer pipe line ?? or do we have a code or standard…
  • Simple Surge tank design check

    Hello Bentley Community, I know similar questions have been asked relating Surge Tanks in Penstock installation, but I want to be sure in my model and it's results. So, I'm modelling using Bentley Hammer Connect Edition a penstock with three turbines…
  • Negative Pressures in Pipe

    My model consists of a reservoir from a higher elevation supplying water to two tanks at a lower elevation. The pipe leading to the tanks keeps going to a negative pressure despite the inclusion of air valves. How can I correct this?
  • Unsteady gravity-driven filling and emptying of navigation locks - Software?

    I am looking for software recommendations for modeling the filling and emptying of navigation locks. Here are some requirements: There is a network (manifold) of pressurized pipes feeding lockage chambers. A large culvert runs alongside the chambers…
  • Inroads Storm and Sanitary - Creating Multiple Pipes At One Inlet

    I am designing a drainage system in which I need two pipes begining from an inlet (on different walls of the inlet) and going elsewhere. One pipe will act as an overflow option if the other reaches capacity. However Inroads S&S does not like the fact…
  • Two Pump Sets discharge in one main Transmission

    Dear All I have watercad model from other consultant and I should review it. the model has two different (different in Head and Flow) Potable water pump stations and they very far from each others about 15 km, both pump stations are ultimately discharge…
  • Why does some of TCV's in my model do not work?

    I have a TCV in my model which do not work, for example when i close it, there is still a pressure in the node. But for some TCV's in my model they are all working. I tried to redraw all the pipes and junctions but still the same thing happened. File…
  • system head curve

    Dear Sir, I am running a closed system with multiple pumps operating in parallel. The system has PBV that represents the pressure drops in the actual system elements. All elevations & hydraulic grades are set initially to zero ;however the system…
  • Re: HOW MODEL COMBINATION AIR VALVES?

    If someone wants to model only the cascading flow downstream of an air-valve; that is, the transitional pressure to gravity type flow that might set up in a gravity trunk main or a sewer forcemain, they should take a look at the new WaterGEMS/WaterCAD…
  • SewerGEMS vs. HEC-1

    I would like to justify to a client the use of SewerGEMS instead of HEC-1. I have a small watershed (200 acres), significantly urbanized with a storm drain network consisting of storm drains, pipelines, earth channels, concrete channels, detention…