Details: I have come across an old soil pipe which is very badly cracked - at least to the parts that I can see - and has small roots growing in to it through the cracks. The ideal thing would be to replace it with a new one but parts of the existing pipe are fairly inaccessible without going to a lot of extra cost and would require damage to an internal tiled floor that I may not be able to match with replacement tiles.
So I wondered if it was possible to buy a plastic internal sleeve for such old pipes. The idea is that the sleeve would support the walls of the existing pipe, stop water leaking through the cracks, and provide a good end to join on to the subsequent pipe.
That's the idea. Is there any product for a problem such as this? Unless it is flexible I would only need a short length - say less than 2 feet.