Flexible connector for WC pan / old cast iron soil pipe

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30 Nov 2007
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Help I am having a problem connecting my new back to wall WC pan to the original cast iron soil pipe using a flexible connector.

I did the most stupid thing. I did not measure the size of the old pipes or check about required fittings. I assumed that the flexible connectors on the market would do the job. So disposed of the old toilet and cut back the cast iron pipework using a angle grinder so that I may push the toilet as far back toward wall as possible. Now I am stuck without a functional toilet and no idea of how to connect my toilet pan to these old cast iron soil pipes.

The stack is shared with my neighbours above and below and I have no access to the stack as it is behind a concrete wall.

I have tried to measure the cast iron pipe - its seems to be between 80-85mm diameter, I think its approximately 3.5" diameter.

The size of the wc pan connection is approximately 100mm.

Can anyone save me... :(
 
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Joined
30 Nov 2007
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Location
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United Kingdom
Hi Denso13,

Thank you for your advice.

I could not find the the flexible WC connector you suggested stocked locally, however a local plumbers merchant did suggest buying a 3.5" Kwickfit WC pan connector extension piece (cut to suit) married with the standard 4" McAlpine Flexible Pan Connector. It worked a treat. Without your help I would have had to call in a plumber to sort this out.

Thank you.
 
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