We've got a strange pipe lurking under the sink. It's closed off with a valve but - as these things do - it's not exactly been behaving itself as it should, and it's spent a few years having a little leak whenever it thinks you're not looking.
Capping it off would be a good idea, but it's not a size I've ever seen in my limited experience, and I can't find anything near it in the sheds.
It looks like it could be an iron pipe (under the grot and mould and I- don't-wanna-know-what), and it's BIG. Squeezing into the back of the tiny cupboard I can just about get ruler and light onto it simultaneously, and it looks to be about 32-33mm OD (1 1/4"?). The valve on the end has an exposed male thread, of about 35mm OD (1 3/8"?).
WTF is it?
The kitchen is on the "to-do" list, so the (rotten) floorboards will be up in that corner and there will be Much Work to strip these strange artefacts out, but in the meantime, it's a case of not letting it get any worse.