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Siamp cistern not stopping filling

Discussion in 'Plumbing and Central Heating' started by RobGeorge, 6 Apr 2013.

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  1. RobGeorge

    RobGeorge

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    Im a homeowner, not a plummer and I have a Siamp Compact 99B cistern which won't stop filling up.

    I have replaced a worn out inlet diaphragm but it hasn't helped.

    What I'm confused about with this system is HOW the water is meant to stop.

    This is the system....


    After a flush water comes out of this hole as shown


    but when it reaches the limit this lever arm is meant to cover the hole to stop the flow


    What I don't understand is how this lever arm stops the flow if it also has a hole in it. Is there a piece missing? I've looked at the installation guide & tech help on the Siamp website and there is no mention of it.

    Can anyone help?
     
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  3. mogget

    mogget

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    Yes there is a piece missing. The arm should have a little piece of rubber in it, this blocks the hole on the main valve.

    All I can suggest, unless you can find the rubber, is to change the valve for a new one.
     
  4. HERTS P&D

    HERTS P&D

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  5. stefan1961

    stefan1961

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    hi, i have the same system.i flushed the loo the other day and it didnt fill up so i changed the diaphram and still cistern does fill up.please help
     
  6. Charnwood

    Charnwood

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    Jumping from thread to thread with the same problem - not a good idea, especially as you are already getting information on your own thread.

    The word 'hijacking' springs to mind.
     
  7. If you don't fit the new membrain in the correct position then you will have all of these problems.
    Looking at the back of the membrain washer there is a locating slot at the back that has to line up with a peg on the main body of the float valve, get it wrong & you will have all of these problems.
     
  8. Not on the Siamp's.
     
  9. mogget

    mogget

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    I could have sworn the one I had did. Maybe my memory is failing me :confused:
     
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  11. Charnwood

    Charnwood

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    What's that?
     
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  12. GrumpyolGit

    GrumpyolGit

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    Well folks it would be an amazing valve which could affect the diaphragm and close the valve with 2 holes remaining open.
    I agree with mogget, there should be a clear silicone pad in the arm which blocks the small hole as the float rises.
    I will take a snap before replacing the split diaphragm which brought me here and post later if there are still unbelievers :)
     
  13. Charnwood

    Charnwood

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    12 month old thread.
     
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  14. mogget

    mogget

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    Has it really been that long? Feels like just a few weeks. Mind, a lot has happened in the last year.
     
  15. Charnwood

    Charnwood

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    Mmmm, hasn't it just. :rolleyes:
     
  16. mogget

    mogget

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    Not sure if we are misunderstanding each other but I was thinking specifically of my partner's long battle with and eventual death from leukaemia, and how that has affected everyone I know personally.

    I am aware that you are not well either, no offence was meant, and I do not want to be on bad terms. I apologise if I have offended you.
     
  17. bamber

    bamber

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    Jesus Mogget, :cry: So sorry for your loss, I know I`m normaly an as*shole but I mean it sincerely,God Bless hun xxxxx
     
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