Connecting to copper waste pipe

Jan 08, 2019 Last reply: 7 years ago 10 Replies

My son is renovating a 1960s bathroom. The soil pipe is steel (easily connected to plastic with a rubber adapter) but I can't see how to connect to the copper waste pipe. The waste has an O/D of 41mm and is very close to a wall and other pipes - how can this be connected to plastic?


Why is that I sometimes look for solutions, ask here for help and then instantly find the solution myself? I think this will do what I need:

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Copper for a waste pipe? Are you sure? I?ve seen copper coloured plastic waste pipe in that sort of size but never copper.

Tim

I've met copper wastes for baths and washbasins (1.5 and 1.25 in) in bathrooms put into Victorian houses in London in the 60s.

This house (1970s build) had 1 1/2" copper waste for bath and sink, it all weighed-in nicely when I altered the plumbing.

I have found in the past that a normal "universal" fitting will go on a

1.5" copper waste since 40mm solvent weld pipe is actually more like 42 to 43 mm OD.

That would work, but you probably don't need it in this case.

Don?t know if it still applies but when one of the US based fast food chains first started to move into the UK the outlets were often constructed from a std kit of parts and the waste pipes were either copper or SS steel. Something to do with building codes they had to comply with in some jurisdictions which did not allow plastic.

Domestically some copper was used in the period where lead stopped being the normal material used for piping but before the widespread availability of plastic which didn?t really start to be used till the 1960?s.

GH

Copper wastes were (are) fairly common where you'd need something more able to cope with knocks etc than plastic. Commercial kitchen or public loo etc?

Unusual in a house, I'd say, but perhaps the contractor was geared up for that sort of work.

Standard in houses from mid 50's through to mid 60's. I don't think anything else was available.

The same here in our 1967 house. And, like you, a nice few ££s back when I weighed it in after re-plumbing the bathroom.

The difficulty in this case is the proximity of wall and other pipework

- there's no room for a compression fitting.

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