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Warning light for submersible

  • 07-03-2023 08:27PM
    #1
    ghugh
    Registered Users, Registered Users 2 Posts: 3 ✭


    I have a submersible pump on the outflow from my septic tank and i put a light bulb on the returning cable so that when the pump is working the light bulb should come on. I wanted a warning light if the pump runs continuously due to a malfunction. However when i set it up the light bulb came on even though the submersible pump had not .

    Any ideas? Thanks



Best Answer

  • #1
    10-10-20
    Registered Users, Registered Users 2, Paid Member Posts: 9,442 ✭✭✭10-10-20


    Yeah, that would have worked better with older pumps where there wasn't electronic circuitry and a multitude of caps on the output to leak current even in a faulted state. Plus, it's parasitic/in-series with the pump, so the failure of the bulb would have caused the pump to fail.

    This might to be an option, I see them on Amazon:

    https://www.crmagnetics.com/remote/cr2550

    Other circuits are available, but the complexity increases.



Answers

  • #2
    10-10-20
    Registered Users, Registered Users 2, Paid Member Posts: 9,442 ✭✭✭10-10-20


    Show us a diagram of how you wired the light across the pump? What wattage was the light and did you have other components in the circuit?



  • #3
    kirk.
    Registered Users, Registered Users 2 Posts: 4,957 ✭✭✭kirk.


    ..



  • #4
    kirk.
    Registered Users, Registered Users 2 Posts: 4,957 ✭✭✭kirk.


    https://www.boards.ie/discussion/comment/120326852#Comment_120326852

    How would you setup that alarm ?

    The domestic and commercial units i worked on were the opposite setup .

    Alarms for overfill



  • #5
    ghugh
    Registered Users, Registered Users 2 Posts: 3 ✭ghugh


    Hi and thanks for the replies. Here is a rough diagram for the Titan submersible pump wiring. If the switch remains on due to malfunction I don't want to burn out the motor.

    With this wiring the bulb was on even though the submersible pump was not working.

    Sorry for amateur drawing.

    16783905134811418710252037517841.jpg


  • #6
    kirk.
    Registered Users, Registered Users 2 Posts: 4,957 ✭✭✭kirk.


    The units with float switches(commercial anyhow) a common issue was solids weighting down the float switches so they didn't bring on the pump

    The alarms that I seen for domestic and commercial were for the tanks being full

    I suppose there's a chance alright that a pump might run continuously



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  • #7
    kirk.
    Registered Users, Registered Users 2 Posts: 4,957 ✭✭✭kirk.


    https://www.boards.ie/discussion/comment/120337807#Comment_120337807

    I was looking at those but the turn-on point is too high for those pumps

    The domestic treatment units are usually wired direct from the consumer unit

    It might be possible to fit something in-line there anyway

    Post edited by kirk. on


  • #8
    ghugh
    Registered Users, Registered Users 2 Posts: 3 ✭ghugh


    Thanks Kirk and 10-10-20, the pump is in a buried barrel on the outflow from the septic tank (so no solids). Just thought it would be an interesting exercise for a retiree with an amateur interest in these things. Will check out the remote current indicator in local electric wholesalers.



  • #9
    kirk.
    Registered Users, Registered Users 2 Posts: 4,957 ✭✭✭kirk.


    Check if it's wired independently from the board anyhow , they usually are the modern units

    That's probably more convenient for monitoring than outside



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