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Noisy bath u-bend

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Mentalguy2k8

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Jan 6, 2009, 8:15:39 AM1/6/09
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Hi,

Our bath can take over 20 minutes to empty from 1/2 full, along with a lot
of loud gurgling and sucking noises. I've taken the waste part apart,
cleaned and replaced, and still have the same problem. I've also repeatedly
used an air-cannister plunger (yes, I covered the sink and bath overflows)
with no noticable result. It's a simple u-pipe from the plughole which goes
directly into the drain, the bathroom sink isn't affected. When you look at
the water draining from the bath, all there is, is a tiny "whirlpool" almost
as if the plughole is only letting water through at 10% of its capacity, yet
everything is clear of hair, soap, scale etc.

The strange thing is, the power shower is fitted in the bath, yet even on
full pressure, the water goes straight down the plughole, it never builds up
in the bath.

Is there any solution?

Stickems.

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Jan 6, 2009, 9:38:16 AM1/6/09
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The bath overflow is blocked.


"Mentalguy2k8" <mental...@googlemail.com> wrote in message
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Ron O'Brien

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Jan 6, 2009, 10:00:44 AM1/6/09
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"Stickems." <Stickems.@last.invalid> wrote in message
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> The bath overflow is blocked.
>
>
Yes that's what a plumber once told me - rather artistically telling me it
is like me trying to drink & breathe when my nose is blocked.....can't say I
sounded an awful lot like a bath emptying, but it made me understand the
science!

Mentalguy2k8

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Jan 6, 2009, 10:18:07 AM1/6/09
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"Ron O'Brien" <cast...@ntlworld.com> wrote in message
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Something like a vacuum?

OK, so what's the solution? Dismantle and clean? I'm not looking forward to
trying to get it off in that small space.

shazzbat

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Jan 6, 2009, 10:26:46 AM1/6/09
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"Mentalguy2k8" <mental...@googlemail.com> wrote in message
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A bit of flexy curtain wire poked gently down the overflow may help. or you
may be able to get it in the bottom end of the overflow via the plughole,
depending on the design of the grids. Poke and twist, should clear it.

Steve


Harry Stottle

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Jan 6, 2009, 11:08:18 AM1/6/09
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"Mentalguy2k8" <mental...@googlemail.com> wrote in message
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I wouldn't try too hard, I have this problem in a 1984 built house, as do
most of my neighbours. When I installed a new bathroom suite, (with its new
overflow), I thought it would disappear, but it is still the same. If I fill
the nearby sink and then pull the plug, the bath gurgles more than ever, and
the sink water erupts through the bath plug hole. I have traced the pipe
under the floorboards to a right angled connector which fits onto the 4"?
vertical soil pipe, which is where I suspect the fault lies, but I don't
fancy messing about with this as it is a plastic welded connection.

Mentalguy2k8

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Jan 7, 2009, 4:02:15 PM1/7/09
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"shazzbat" <shaz...@spamlessness.fsnet.co.uk> wrote in message
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Thanks guys, I used one of those air/water plungers on the overflow on the
inside bath side, it did make a little difference, the noise isn't so loud
now. Looks like I'm going to have to re-create the film "arachnophobia" and
take the bath panel off and clean it out properly among the spiders!

Harry Stottle

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Jan 7, 2009, 4:22:08 PM1/7/09
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"Mentalguy2k8" <mental...@googlemail.com> wrote in message
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>
> Thanks guys, I used one of those air/water plungers on the overflow on the
> inside bath side, it did make a little difference, the noise isn't so loud
> now. Looks like I'm going to have to re-create the film "arachnophobia"
> and take the bath panel off and clean it out properly among the spiders!
If you think logically about this, a blockage in the bath overflow pipe
could not create a vacuum to stop the bath emptying normally, unless you
also had a vacuum in the bath itself, which I don't think you will have :-)
so I would look for a partial blockage in the waste pipe.

shazzbat

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Jan 8, 2009, 5:17:52 AM1/8/09
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"Harry Stottle" <thiswo...@nowhere.uk.co> wrote in message
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>
> "Mentalguy2k8" <mental...@googlemail.com> wrote in message
> news:xL89l.536$ms5...@newsfe25.ams2...
>>
>> Thanks guys, I used one of those air/water plungers on the overflow on
>> the inside bath side, it did make a little difference, the noise isn't so
>> loud now. Looks like I'm going to have to re-create the film
>> "arachnophobia" and take the bath panel off and clean it out properly
>> among the spiders!

It might look something like this behind the panel :-)

http://i163.photobucket.com/albums/t282/shazzbat3/misc%20stuff/jke.jpg

But anyway, fitting a newer anti-siphon type of trap may also help, allowing
air to bleed through the trap. If a vacuum, or more correctly a depression
is forming, it is likely to be between the water going down the pipe and the
trap,trying to tug the water in the trap after it, thus creating the
gurgling. But I still think a blockage is more likely to be responsible for
the reduced flow.

Steve


Ron O'Brien

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Jan 8, 2009, 5:23:28 AM1/8/09
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Every now and again I pour a solution of caustic soda down plug holes and
overflows just to keep them clear, our kitchen plug hole sometimes gets a
bit smelly which is my cue to do it! Bathroom plug holes (and overflows) can
block up with hair and soap caustic soda sorts it out and far cheaper than
the proprietory solutions you can buy

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