Waste pipe break in

George Bray · 2003-10-04T09:12:26+00:00

I need to break into the main 4" vertical waste pipe in my loo, inorder to reduce it to 1.5" for venting up to the roof, as from about12" above floor level. The huge vertical box section which thebuilders installed seems so ugly and unnecessary.How can I break apart the seal in the grey pipe, I wonder? It'ssolvent joined isn't it? The pipe was installed in the mid-80s and ismarked Marley Extrusions 110mm.Are there any building regulations which could threaten my plan? Iassume a 1.5" pipe is adequate for letting a few bubbles of gasescape, and should also cope with water rising part way up the 1.5"pipe, e.g. when I drain the bath.Will I need respiratory gear when I crack into the pipe?!RegardsGeorge

Oct 04, 2003 40 Replies

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roger 22 years ago

In article , George Bray writes

I did what you have in mind with 5 metres of 1" bore, serving loo, bath had HB, 20 years ago. No problem so far.

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Waste pipe break in

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