Forum Post: RE: Outlet to a Pond Flows
Hello Ryan, Are the data inputted into the model correct? The profile "CB-1 to Pond" has a large drop in invert elevations. Plus the size of the conduits decreases downstream (the diameter of CO-INFIL...
View ArticleForum Post: Sewer Cad Results
Dear All, I just want to ask, If it is possible that the upstream(inflow) to a lift station will affect the outflow of a pump/lift station? If yes, How? What's on my mind, there should be no changes,...
View ArticleForum Post: Choice of Solver for Wetwell Failure Analysis
I am anlysing a collection system with a more than average amount of pressure subnetwork involved in Sewergems. I am using this system to analyze wetwell failure (power off) at the stations...
View ArticleForum Post: RE: H2S Modeling in SewerGEMS
Hi Dan, It's good to hear from you. Yes, SewerGEMS can predict hydrogen sulfide formation using the SWMM solver. This is a new feature in SELECTseries 4. You can read more about it from the below...
View ArticleForum Post: RE: H2S Modeling in SewerGEMS
Dan, I have also emailed you the user's guide, so you can have a look at the help topics that Tom was talking about. Mark
View ArticleForum Post: RE: Synchronise
Dang, As stated in my previous email as of the current builds of WaterGEMS it is not possible to sync out from the model to a geometric network, which is why I provided the workaround with the...
View ArticleForum Post: RE: Outlet to a Pond Flows
Hello Scott, I have an additional questions with regards to my model. I have been reviewing some of the information and confirming with hand calculations and came across something which does not make...
View ArticleForum Post: RE: Create pattern, Multiple sources from individual tanks,...
To help you with this issue, we may require more detailed information. Please upload your model if possible & describe the particular area in the model you are having issues with, which would be...
View ArticleForum Post: PondPack V8i Question - Deleting a previously created Outlet...
Let's say that I have already designed a Pond with an Outlet Control Structure, in this case using the PondMaker Tool, and exported that control structure into the design. How can I go back and make...
View ArticleForum Post: Watercad junction - how to create junction and assign 25 psi...
Hi, Trying to figure out the best way to create Watercad model. New piping coming from proposed pump station will connect to existing force main. Gauge reading at connection point where new piping will...
View ArticleForum Post: RE: TCV & Globe Valves
Hi, I am using TCV with Valve Characteristic Curve type. How to determine the initial fully open discharge coefficient? do we get the velocity at 1st run with no throttled and pressure H2o at node just...
View ArticleForum Post: RE: Watercad junction - how to create junction and assign 25 psi...
If you are not getting the desired pressure & you want to maintain a defined pressure in the network you can use the pressure sustaining valve to maintain the required pressure.
View ArticleForum Post: RE: TCV & Globe Valves
The discharge coefficient can be determined from the minor loss K value using Cv = 29.2 d^2/sqrt(K) (Crane technical manual) where d is in inches and Cv is in gpm/sqrt(psi) K is usually on the order of...
View ArticleForum Post: RE: Create pattern, Multiple sources from individual tanks,...
Along with the model (or an illustration), it may also help if you could explain the situation in a bit more detail. Are you saying that each of your water users has an individual tank, and you're...
View ArticleForum Post: RE: Watercad junction - how to create junction and assign 25 psi...
Although you can force a pressure at a location by using a reservoir, it doesn't sound like that's what you need in this case. Is this proposed pump station pumping into the existing force main? If...
View ArticleForum Post: RE: Watercad junction - how to create junction and assign 25 psi...
Before you get into anything as sophisticated as Darwin Calibrator, you need to understand how the model uses pressure data. Pressure is not an input to WaterCAD. WaterCAD calculates pressure as an...
View ArticleForum Post: RE: Watercad junction - how to create junction and assign 25 psi...
Existing force main is a mile long raw water line coming to wastewater treatment plant and there is no way I can model that as I don't have as-built drawings. When plant operates as required,...
View ArticleForum Post: RE: Watercad junction - how to create junction and assign 25 psi...
HGL of reservoir node = 25x2.31 + elevation at which pressure was measured As an engineer, I'd be uncomfortable selecting pump without understanding the dynamics of the force main.
View ArticleForum Post: RE: Watercad junction - how to create junction and assign 25 psi...
If you're pulling water out from this existing force main, the below article may be of interest to you. It details how to simulate a connection to an existing (unmodeled) system to account for changes...
View ArticleForum Post: RE: Watercad junction - how to create junction and assign 25 psi...
I understand your concern, thanks for advice.
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