Can someone recommend a good book / guide to underground drainage?

[garyo]

I've found that concrete doesn't actually bond well to salt glaze clay pipe so it's not that hard to expose a pipe with a sharp sds chisel, then slide your rubber over the end and you're away.

 

[kingandy2nd]

I will give it a try, but the test I did the concrete was very well stuck.

 

[noseall]

I will give it a try, but the test I did the concrete was very well stuck.

We have had to do it many times. You need to go easy around the pipe. Use any available mechanical cutting tools at your disposal to weaken the concrete around the pipe first - i.e. grinders, drills, electric hammers etc. Always strive to cut parallel to the pipe rather than bear down directly on it.

 

[Ian H]

It could be Supersleeve pipe which Is more like glass that normal clay pipes.

 

[noseall]

Supersleeve

Horrendous stuff. This time last year, I pecked away at concrete surrounding Supersleve. Each time I exposed more than 40mm - crack!
Ended up making the connection just under the fence on the neighbours side.

 

[Nige F]

, then slide your rubber over the end and you're away.

I always used to do that

 

[Nige F]

It could be Supersleeve pipe which Is more like glass that normal clay pipes.

Indeed so - they used to make a chain wheel cutter for that stuff. Previously the drainlayer would stand a saltglazed pipe in the sand pile, fill with sand and tamp down, then go round and round the pipe with a sharp cold chisel.

 

[kingandy2nd]

Construction handbook by Chudley and Greeno

This book arrived yesterday - It's a serious read at 1012 pages, but having flicked through it I think this will be a very useful resource with plenty of diagrams, so thanks again for the recommendation.