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Will expanding foam seal a soil pipe from smell?

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Steven Campbell

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Mar 23, 2011, 7:14:15 PM3/23/11
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The way our extension was built (around 25 years ago) the external downpipe
from the gutter was cut above the new roof and re routed.
The pipe that went down the external wall which was now the inside of the
extension was removed from floor level, literally.
I recently lifted a laminate floor to find what looks like the jagged top of
an old pipe just below the level of the floorboards. Since then we have been
getting a really eggy smell when the shower is on or the hot tap has been
running for a while.

I presume the gutter pipe runs into the soil pipe?

The pipe has been filled with a foam type thing (would expanding foam have
been out 25 years ago?)

What is the best way I can seal it to prevent the smell coming out? Would
loads of expanding foam do the trick? There just seems to be a thin layer of
foam type stuff in it just now.

Cheers.

geraldthehamster

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Mar 29, 2011, 7:25:21 AM3/29/11
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Can you cut the end of the pipe square, and get a suitable plug or cap
from your local builders' merchant?

Cheers
Richard

Steven Campbell

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Mar 30, 2011, 8:01:34 AM3/30/11
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"geraldthehamster" <diy...@hotmail.co.uk> wrote in message
news:f7800654-3d5a-4825...@x3g2000yqj.googlegroups.com...

Cheers
Richard


No. Unfortunately the bit that goes under the floor is buried into the wall.
Also the bit they cut is all jagged so I couldn't even cut more of the floor
board to expose it.

Anyone know if cement would cap it and stop the smell?

nafuk

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Mar 30, 2011, 8:36:41 AM3/30/11
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On Mar 24, 12:14 am, "Steven Campbell" <spam@away> wrote:

Hi, I have used an expanding drain plug in the past for blocking off
unused sections of drains.
http://www.toolstation.com/shop/Hand+Tools/Plumbers+Tools/Metal+Drain+Testing+Plug+4/d10/sd210/p57702

Steven Campbell

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Mar 31, 2011, 2:07:12 PM3/31/11
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"nafuk" <neil.f...@btinternet.com> wrote in message
news:b8aca9c4-7e33-482d...@f11g2000vbx.googlegroups.com...


Brilliant. I never knew these existed.
Hopefully just what I was looking for.
Thanks.


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