Joining Kitchen Waste to Cast Iron Soil Pipe?

Joined
22 Nov 2005
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London
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Hello,

I am fitting our kitchen very soon and wanted to get as much of the plumbing done as poss but need your help.

We are moving our sink from the side wall of the house to the back wall. The waste used to go into the drain along with the out side tap (on the side of the house). I now need to run the waste pipe along the inside of the back wall approx 5 feet outside to the side of the house. The problem now is that there iis a drainpipe and a cast iron soil pipe in the way preventing me from getting to the existing drain.

I have called and asked our BI and he said it is ok for me to cut into the cast iron soil piep and put the kitchen waste into there.

Can someone please advise how I do this. Can I cut a section out and fit a collar that the waste can feed into?

Many thanks for yuor help!!!
 
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Two options, buy a 40mm boss (specifically made for CI NOT plastic) expensive at about 40-50 quid. Drill and use metal holesaw (54mm?? off top of head). Or cut out section and use a fernco coupler.....rubber and jubilee clips.....not as neat to look at but about 10-15 quid cheaper.....
 
Thank you and sorry for the re-post, I searched high and low and couldn't find this one!!

Can all these items be bought at a a good plumbers merchants? Is a metal hole saw a specialist item or just a posh hacksaw?? I that Wickes so a sort of "collar" that goes round the pipe with a joint to attah the waste, is this the right sort of thing, I only saw it on-line.

Thanks again!
 
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A hole saw, is a circular saw blade (imagine the lid of a jar, with serations) fits an electric drill, so you can drill a large hole, you can get them for cutting through brick as well.
 

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