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Foul smell downstairs when we flush upstairs

Discuss Foul smell downstairs when we flush upstairs at UK Plumbers Forums; Originally Posted by townfanjon The idea for the valve is to let air in but keep the smell in the pipe . They are designed for inside ( unless sombody ...
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    Default Re: Foul smell downstairs when we flush upstairs

    Quote Originally Posted by townfanjon View Post
    The idea for the valve is to let air in but keep the smell in the pipe . They are designed for inside ( unless sombody knows different ) roof spaces etc etc .
    Take it off , I bet it sorts it
    Was thinking inside use but didn`t have the confidence in saying so.
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    Default Re: Foul smell downstairs when we flush upstairs

    Quote Originally Posted by townfanjon View Post
    The idea for the valve is to let air in but keep the smell in the pipe . They are designed for inside ( unless sombody knows different ) roof spaces etc etc .
    Take it off , I bet it sorts it
    take it off as in keep the waste pipe completely exposed at the top?

    also, I just realised, all 3 plumbers told me this was not an air cap and I received £ quotes to "Install the air valve ot the top of the waist pipe outside" - does this mean they don't consider this an air admittance valve?

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    Default Re: Foul smell downstairs when we flush upstairs

    Like I said , somebody may no different, but AAV's go inside or they do in Yorkshire lol .
    http://jdlplumbingandheating.co.uk/

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    Default Re: Foul smell downstairs when we flush upstairs

    Quote Originally Posted by townfanjon View Post
    Like I said , somebody may no different, but AAV's go inside or they do in Yorkshire lol .
    just confirming 2 things here:
    1. I remove it and leave the waste pipe capless
    2. the "air valve" that plumbers want to charge me for is the same as the existing AAV?

    ta!

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    Default Re: Foul smell downstairs when we flush upstairs

    The bit that concerns me is the balcony above but I don`t know the regs on soil stacks, most outside ones exit at roof level above the highest window. Some have wire bushes on top to stop debris falling in.

    Sorry but that`s about as far as I go with this.

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    Default Re: Foul smell downstairs when we flush upstairs

    Just buy a cheapo leaf guard for the top .
    http://jdlplumbingandheating.co.uk/

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    Default Re: Foul smell downstairs when we flush upstairs

    yes, that balcony is in use so is the room that gives onto it so in theory, the waste stack should be higher than the conversion, that's why a plumber asked for £1200 this morning to extend the piping above the loft conversion.

    can I get an explicit answer pls as to whether the air valve replacement proposed by plumbers is the same as the current AAV?

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    Default Re: Foul smell downstairs when we flush upstairs

    Just looked at pic 3 , and seen the balcony , thats why the AAV is on the top . Unless they make them for outside ( which I doubt , the diaphragm freezes inside ) you may have to sort the whole soil pipe. I maybe wrong I dont do anything with this sort off stuff anymore . Just have a look on a website ( McAlpine ) and see if they are available for outside .
    http://jdlplumbingandheating.co.uk/

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    Default Re: Foul smell downstairs when we flush upstairs

    Quote Originally Posted by nisnooz View Post
    can I get an explicit answer pls as to whether the air valve replacement proposed by plumbers is the same as the current AAV?
    Guess you have to ask them, but with a balcony it can`t vent there. (Using logic now not knowledge).
    Last edited by rpm; 2 Weeks Ago at 09:10 PM.

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    Default Re: Foul smell downstairs when we flush upstairs

    ok gents, Ventapipe 100 | McAlpine Plumbing Products

    if you scroll down and click on the youtube video, if I understand it correctly, AAVs are an outdoors solution?

    and another AAV read https://www.studor.net/maxi-vent
    Last edited by nisnooz; 2 Weeks Ago at 09:23 PM.

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    Default Re: Foul smell downstairs when we flush upstairs

    right, look at this:
    Q7. Where can the Studor AAVs be installed?

    The Studor Mini-Vent can be installed above the fixture and up to 1000mm below the “flood level” of the fixture. It can be installed under the sink, in roof space between floors, in wall spaces, etc. – as long as the valve is installed 100mm above the horizontal waste to the fixture that it serves. There must be free movement of air to the valve. The Studor Maxi-Vent can be installed at the top of the stack in the loft, eliminating the need to penetrate the roof. The Studor Maxi-Vent must be installed 150mm above the highest branch connection.

    how does this match up to my pipe work as seen in the photos?

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    Default Re: Foul smell downstairs when we flush upstairs

    Looks like either can be used but it needs to fit under that guttering.
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