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Broken Clay Waste Pipe

Posted: October 11th, 2021, 8:16 pm
by pm141088
Good evening everyone.

I'm new to the forum and hoping I can get people's opinions on some recent work which was carried out on a broken clay waste pipe.

We have an internal soil stack in our kitchen (aren't we lucky!) which feeds into a clay waste pipe. We recently noticed the clay pipe had a massive crack which spiraled all the way around the pipe and was in fact weeping (not exactly hygienic in a kitchen). Our home emergency cover was invoked and a contracting company came out who effectively lined the clay sewer pipe all the way to the external manhole.

During the implementation of the lining, the clay pipe popped and fell apart leaving behind the fiberglass lining which is now completely exposed and looking rather vulnerable. We were told to be very careful that the lining isn't disturbed in any way as any issue to the lining would mean excavation would be required to replace the clay pipe with plastic.

A few questions if I may:

1. Were the contracting company right to go ahead with a repair i.e. pipe lining or should they have dug out the clay pipe and replaced it with a new plastic pipe?
2. Do clay pipes typically pop during the lining process?
3. Does anybody know how durable these linings are?

Appreciate any advice or comments on this matter.


Re: Broken Clay Waste Pipe

Posted: October 11th, 2021, 11:57 pm
not my forte' but: they did not solve the problem paid for? - get them back.
otherwise, i would contact your insurance company for cover.
wouldnt take much taking that concrete up by the looks of it and new elbow to otherside of wall. However, i would be more concerned about the decaying water pipes being eaten by the lime in the concrete surrounding them!

Re: Broken Clay Waste Pipe

Posted: December 5th, 2021, 1:18 pm
by joni os
I would be cutting the waste pipe flush with floor level and using a similar push fit connection, as existing, extend plastic pipework to connect at floor level, with a slip coupling to join new and existing plastic pipes.
Fibreglass lining is an appropriate repair for below ground pipework when adequately supported and not subject to heavy loading but without external support longevity could be compromised. Apart from aesthetic consideration.