WaterCad Model - Point of Connection
WaterCad Model - Point of Connection
(OP)
Its been a while since using waterCAD and I am looking for help on how to model the connection from the existing system to a proposed system extension.
I have been given the following information from the City based on their hydraulic model of the sytem.
Elevation of Connection: 732-ft
Hydraulic Grade at Connection: 891-ft
Static Pressure: 63 psi
Available flow: 2,120 gpm at 20 psi.
What is the simplest way to model the connection? It seems that if I use a reservoir only that does not take into account the available flow. If I use a reservoir and pump I am not sure on how to get the three data sets for a pump curve.
Any help is appreciated!!
I have been given the following information from the City based on their hydraulic model of the sytem.
Elevation of Connection: 732-ft
Hydraulic Grade at Connection: 891-ft
Static Pressure: 63 psi
Available flow: 2,120 gpm at 20 psi.
What is the simplest way to model the connection? It seems that if I use a reservoir only that does not take into account the available flow. If I use a reservoir and pump I am not sure on how to get the three data sets for a pump curve.
Any help is appreciated!!





RE: WaterCad Model - Point of Connection
RE: WaterCad Model - Point of Connection
What is your average, peak and maximum demands? What is the minimum residual pressues requirement for your pipeline ? 20 psi/
RE: WaterCad Model - Point of Connection
RE: WaterCad Model - Point of Connection
For now I have set up a model using a reservoir at an elevation of 732 and a pump with three data points. I followed cvg's advice and drew a straight line between my known static and 20 psi residual readings to approximate my third point.