Plumbing

Broken collar on clay soil pipe - how to fix?

Anonymous user 23/02/2024 - 3.53 PM

Hello, we are having some groundworks done and have noticed that where the concrete has been partially removed around the bottom of the soil pipe (from toilet etc), it has exposed a gap at the end of the plastic pipe which is leaking - it looks maybe like the collar on the lower clay pipe has been partially broken accidentally. Can this just be patched up e.g. with mortar/cement, or if not what is the best fix? Possible options I'm thinking of: 1. Plastic/rubber adaptor that sits inside clay pipe to fit plastic pipe into; 2. Replace lower length of plastic pipe with longer piece that finishes further down within clay pipe, then seal up somehow; 3. Dig further down through concrete to cut clay pipe down below collar, to be able to fit rubber connector round outside - not ideal as seems likely to risk more damage to clay pipe? Any suggestions gratefully received! Thanks in advance

Clean a drain ltd

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Newcastle Upon Tyne

This is quite common For the rest bends at ground level to be damaged. In most cases there damaged from day one and yes can somewhat work quite well for 40 years or so. The cause of this is on most properties in the 50s 60s 70s 80s had heavy cast iron pipes fitted and they rested the cast pipe in to the clay rest bend and pushed it up on to the wall this meant that the heavy cast pipe along with its lead sealing gasket would have to be fully supported by the clay pipe beneath. This causes cracks and over time water leaks and washes away the earth from underneath causing it to collapse. We do repair this problem on a weekly basis and suggest dig back to a good joint and replace approximately 1m pipe and new rest bend.

Answered19 July 2023

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Anonymous user

It’s best to dig further alone clay pipe to expose past the collar and replace with rubber connector & fresh plastic pipe. Just did a repair on this exact subject few days ago

Answered23 July 2023

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