Connecting plastic drainpipe to earthernware storm drain

[Lower]

With all the rain we've had i noticed that one of the downpipes off the roof was over flowing where it goes into the ground.

Removing the down pipe i find that its connected straight into an earthenware elbow which cracked at some point in the past and been badly repaired with cement.

The elbow and the under ground pipe that it connects to were both full of soil so i removed the elbow, cleared the horizontal pipe as far as i could reach and then was able to clear the remaining soil by washing the pipe out with the jet of water from a hosepipe until the drain was running clear and i could hear the water running through at the next drain down the line.

I temporally replaced the elbow and sealed the join with plumbers mait, but i obviously need to do a permanent repair.

I need to replace the earthenware elbow and connect to the existing earthenware under ground pipe.

Stupidly, i didn't measure the bore of the pipe.

I'd like to replace the old cracked elbow with modern plastic, but can anyone advise me what the pipe bore is likely to be and what i should be using to make the connection? Is there a push fit adaptor that i can buy?

 

[Lower]

Anyone?

 

[kirkgas]

cant advise on pipe size but there are loads of adaptors available to connect from fireclay to plastic, simply slide rubber connector over both pipes and seal with jubilee clip, for the life of me i cant remember the name of any of them

 

[powell30]

Fernco do a whole range....drain center carry them.......

 

[Lower]

Thanks for the above, i'll try the drain centre.

 

[Hugh Jaleak]

Screwfix???? (Wickes do something similar.)
http://www.screwfix.com/app/sfd/cat...HZOCFFI?productId=19914&imageNo=null&ts=54510

This will likely do the job, its unlikely you have anything other than a 4" pipe in the situation you have described. Cut the clay with an angle grinder, best to chamfer the end of the pipe, when you've cut it. Use coupling as shown to join to plastic and away you go.

If you're anywhere near NN10 give me a P.M. I have the parts you require in my garage.....