Overflow sounds like a toilet constantly!!

Discussion in 'General Discussions and Advice' started by Punisher, 12 Aug 2012.

  1. Punisher

    Punisher

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    hi guys
    hope everyone is keeping well.

    i hope you can shed some light on this one for me.

    i have a corner overflow and it sound like a damn toilet!!!
    moer loud.
    basically , i have a pipe that runs straight to the sump from the overflow box.

    the pipe in the overflow box has a 90 bend attached to it , yet still making a noise... ? :(

    please help before i get murdered in my sleep by the household :tt2:

    it looks pretty much like the pic attached yet there is no "cap" on the top, just an open hole??

    thanks a million
     
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  3. OP
    Punisher

    Punisher

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    [​IMG]
     
  4. OP
    Punisher

    Punisher

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    i see it seems to have a "durso" at the top
    mine is just open??

    please let me know what you guys think.
    thanks a mill
     
  5. roderigo

    roderigo

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    Think you need the cap but you must drill like a 3 ml hole in it
     
  6. Greg Bridger

    Greg Bridger

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    Yup you got to cap it and drill the hole. When I did mine I was told to put a shut off valve just before it enters the sump and that would allow you to regulate the amount of flow.
     
  7. OP
    Punisher

    Punisher

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    How big does the hole need to be?
    Do you need the shutoff valve at the bottom in the sump?
     
  8. Greg Bridger

    Greg Bridger

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    Three or four mill sounds about right and mine is about 100mm above the water but I don't think it's to important as long as it is easily accessible
     
  9. belindamotion

    belindamotion Google Master

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  10. RiaanP

    RiaanP Moderator

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    drill a 6mm hole in the top cap. Push a airline hose in as in previous picture. Add a airline valve, those plastic green stupid valves to control the airflow entering the downpipe. With adjustments you should be able to find the spot the tank is most silent.

    another source of noise is any 90 degree elbows on the downpipe. Rather replace with 45 degree bends.
     
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