This discussion has been locked.
You can no longer post new replies to this discussion. If you have a question you can start a new discussion

Watercad tools for selecting a pump

I am running a max day scenario in steady state and I am getting low pressures in several nodes. I would like to determine the pump settings that will increase the pressure at those nodes.  So far the only method I have been using is to manually change the settings until I get the pressure I need. 

Does watercad have an automatic tool that calculates the settings that would work?

Thanks

Parents
  • I'm not aware of an automatic tool, but if your system is fairly simple (not too many pumps/tanks) and all a single pressure zone, you can speed up the guess and check process. After the first model run, find the node with the lowest pressure. Subtract this from your minimum desired pressure, and multiply by 2.31 to convert from PSI to feet. Assuming you are using the single point pump curves, add this value to the target head of the pump.

    Note that tank levels also play a key role in pressures in the system, so you may have to make adjustments to both your pumps and tanks.
Reply
  • I'm not aware of an automatic tool, but if your system is fairly simple (not too many pumps/tanks) and all a single pressure zone, you can speed up the guess and check process. After the first model run, find the node with the lowest pressure. Subtract this from your minimum desired pressure, and multiply by 2.31 to convert from PSI to feet. Assuming you are using the single point pump curves, add this value to the target head of the pump.

    Note that tank levels also play a key role in pressures in the system, so you may have to make adjustments to both your pumps and tanks.
Children
No Data