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Thread: Top off two tanks with one pump

  1. #1
    Regular Vistor
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    Mar 2013
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    Ottawa, Canada
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    Top off two tanks with one pump

    I have a pump that controls top off to my display tank. It's set up with high and low float switches and is off during the period in which my surge flow is running.

    I'd like to use the same pump to control top off to my QT tank.
    The QT tank has the Neptune optical sensor connected to an FMM

    The top off pump draws water and diverts it through two solenoids - each connected to either the display or QT tank

    I can program the solenoids to turn on as the respective level sensors activate but how can I program the same pump to be controlled by either sensor?

    Thanks for your help.

    here is the code for my display tank:
    Fallback OFF
    Set OFF
    If Swx6_1 CLOSED Then ON
    If Swx6_2 OPEN Then OFF
    Defer 002:00 Then ON
    If Time 13:30 to 17:32 Then OFF

  2. #2
    Frequent Visitor
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    Mar 2015
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    San Jose,CA
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    Use the state of the solenoids to turn on the pump.


    Sent from my iPhone using Tapatalk

  3. #3
    Frequent Contributor zombie's Avatar
    Join Date
    Dec 2013
    Location
    Denver, CO
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    13,176
    Set the solenoids programming like independent top offs. Set the pump to turn on if either solenoid is on.

    You might be an engineer if...You have no life and can prove it mathematically.

  4. #4
    Regular Vistor
    Join Date
    Mar 2013
    Location
    Ottawa, Canada
    Posts
    20
    Thanks zombie and vhuang168 for your responses. I tried using the solenoid state to control the pump and it seems to work as I need it to.

    Cheers!

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