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Posted: Thu Sep 29, 2011 9:51 pm
by HardTarget
Hi all, joined the forum in the hope someone may be able to help me with my drain repair? I volunteered to help my son with what is probably a simple job to most, but to be honest I am totally stumped as to what I need and then how to go about it.

My son bought an old Victorian terrace recently and not long after discovered that even in dry weather it was always had water sitting in a small hole just above the hopper. He asked me to take a look and I discovered it was leaking from the plastic soil pipe which connected into the socketed clayware in the ground. I think it may have been damaged in the past and they used probably a sand/cement mix to repair it, but it must have failed with time and started to leak around the hopper.

Would be appreciated if someone could advise me on what I need and also how I go about fixing this or would I be better getting in a specialist? One last thing I noticed that the manhole cover was falling apart would I be able to buy just a new lid or would I have to buy the frame as well? Manhole cover was 580mm x 580mm.

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Jimmy

Posted: Thu Sep 29, 2011 10:54 pm
by Carberry
Looks a bit of a mess.I would take out the relevant bits and pieces and replace it.
For the pipe on the left get a flexible coupling,108-122 x 121-137. big end on clay pipe and in the small end depending on where you make your cut either a bit of 110mm pipe and a 90 degree rest bend or just the 90 degree rest bend. Then a 110mm to 68mm reducer for connecting the downpipe to the 110mm pipe.

For the right hand side, get rid of the hopper, get another flexible coupling, cut this one further back so you have a little more room to work with. Attach an elbow and a 45 degree junction (looks kind of like a Y).

Get a double waste adaptor, looks like 40mm attach that to the left branch and to the right branch attach another reducer and 45 degree bend.

Right hand side could be a bit tight for all that though.

Lubricate the end of the pipes that you are trying to connect, it makes life a lot easier.

I've not seen anywhere that sells covers seperately from the frames, you could probably find one somewhere though.

The plastic pipework isn't that expensive so may as well replace it instead of doing a bodge job with cement.

Further reading:
http://www.pavingexpert.com/drain10.html

Hope that makes sense.