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Bath waste into cast soil pipe leaking


 
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MugabesDeadCat

from United Kingdom

Joined: 18 Oct 2009
Posts: 63
Location: Tyne and Wear,
United Kingdom

PostPosted: Sun Feb 03, 2013 7:15 am Reply with quote

In the process of fitting a new bath and when we exposed the soil pipe, which is cast iron, the 40mm solvent pipe coming off the bath its terminating into a branch on the soil stack which is about 50-55mm in diameter. All the previous installer has done is shove the bath waste into that branch and siliconed it up, but its now leaking like crazy. Anyone any ideas how you'd connect 40mm solvent pipe to 50-55mm cast soil pipe?


Last edited by MugabesDeadCat on Sun Feb 03, 2013 7:31 am, edited 1 time in total
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cozzmic

from United Kingdom

Joined: 20 Jan 2005
Posts: 768
Location: Nairnshire,
United Kingdom
Thanked: 58 times

PostPosted: Sun Feb 03, 2013 7:25 am Reply with quote

Take out plastic, clean and dry cast socket and plastic. Refit plastic and pack in something to take up the space (rope, poly bag, caulk preferably) and centre the pipe, while leaving enough room to seal with pure cement. Pack in the cement and smooth off, leave to dry job done.
Check cast is not choked as cast is inclined to fur up with rust and hair.
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MugabesDeadCat

from United Kingdom

Joined: 18 Oct 2009
Posts: 63
Location: Tyne and Wear,
United Kingdom

PostPosted: Sun Feb 03, 2013 7:36 am Reply with quote

Cheers cozzmic. Pure cement? As in Portland cement?
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cozzmic

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PostPosted: Sun Feb 03, 2013 7:46 am Reply with quote

Yes, it sets rock hard and will make a permament fix. Used to be used on old cast iron central heating connections where the pipes were socket and spigot.
I connected onto the said pipes and used same arrangment and as long as set it will take pressure. Your waste won't have any pressure in it as such so will be Ok..
One thing, rough up the plastic to give the cement something to key onto.
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MugabesDeadCat (3 Feb 2013)
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Nige F

from United Kingdom

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PostPosted: Sun Feb 03, 2013 1:57 pm Reply with quote

rapid set cement - Jetcem icon_wink.gif
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