On 09/06/2018 23:00, Fredxx wrote:
I've never seen this before, where a 4" soil pipe must have been factory
made.

This was fitted into a 1960/70s council house.

Sorry the photos are poor, too many cobwebs etc.

Vertical pipe on left with 4" emerging to right
http://i66.tinypic.com/2iv01u1.jpg

Shows another 2" pipe emerging and heading off in the same direction as
other horiz 4" pipe.
http://i66.tinypic.com/34t48bt.jpg


Even into the 1960s, the building industry was suffering from shortages
of materials as a direct result of post-war rebuilding. That resulted in
quite a few innovative techniques being tried, some successful, some
not. Building a lot of identical houses would be the ideal place to try
factory pre-assembly and welded steel pipes would need less material
than traditional cast iron.

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Colin Bignell