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Can a pump serve more than two tanks on the downstream side served by a single rising main pipe

Hello Bentley family,

Can a single pump be able to pump water to two or more tanks placed further downstream from the first tank all located along the same rising main line but the tanks having higher physical elevation than the 1st tank?

Please have a look at the attached file in order to have a better understanding of my question  Khasoko Buyofu.zip

My question is, After choosing the right pump that is enough to pump water up to the furthest and highest point in the model with the inclusion of all loses; why is watercad unable to allow water to flow to the 2nd tank?Is it because pressure gets back to zero when the surface of water comes in contact with the atmosphere at the tank?What measures should I use then or controls?Should I introduce a gate valve?

Parents
  • Hello Allan,

     

    You can model two tanks with one pump, in your case unless tank T6 is filling water will not go to tank T5.

    So please put on-off controls on pump based on hydraulic grade levels of both the tanks.

    Or you could put controls on adjacent pipes of tanks based on tank levels and when pipes adjacent to tanks are closed, pump should be off.

     

    I will update you further once I put these controls in your model.

    Regards,

    Sushma Choure

    Bentley Technical Suppport

Reply
  • Hello Allan,

     

    You can model two tanks with one pump, in your case unless tank T6 is filling water will not go to tank T5.

    So please put on-off controls on pump based on hydraulic grade levels of both the tanks.

    Or you could put controls on adjacent pipes of tanks based on tank levels and when pipes adjacent to tanks are closed, pump should be off.

     

    I will update you further once I put these controls in your model.

    Regards,

    Sushma Choure

    Bentley Technical Suppport

Children