Broken clay sewage pipe. Please help.

[at0mic]

I've got a broken clay sewage pipe. The down-pipe carries waste from the upstairs bathroom. Please can anybody advise the best way to fix this?

I'm amusing I cant just replace the clay elbow with a plastic elbow because I'd need some kind of joiner to connect clay to plastic? Please help.

 

[Madrab]

Have you still got the piece that was unwittingly hacked out when excavating? That could possibly be repaired if you have and it's in one piece.

 

[Ian H]

You can use a plastic bend and an AC4000 connector to join it to the clay.

Your problem will be that you have 2 clay collars very close together, they will both need to go, and your pipe is covered with concrete.

Chances are the concrete will be quite brittle and by removing both collars you will have more room to work.

 

[Hugh Jaleak]

I'll expand on Ian's advice if I may. You need to dig back and expose some more of the clay pipe, going off to the right of the picture, and carefully remove the concrete to expose about 6" of pipe behind the collar. Using an angle grinder, carefully cut off the collar, leaving a stub of clay pipe, (I always chamfer the edges, internal and external to remove any sharp edges or points where debris can catch.)

You then need a clay to plastic collar, such as http://www.screwfix.com/p/floplast-underground-flexible-adaptor-110mm/19914, which will join you to plastic. Run a short piece of plastic pipe to bend, fit bend, and again, short piece of plastic to join existing stack, then use a slip coupler to join new plastic drain to stack. Protect new drain with peagravel, then backfill, and reinstate as required.