"Could you just fix the leak under the sink?"

It's the "just" bit that is so annoying. The problem is a platic pipe fitting with 2 tiny holes in it. It's on the boiling water tap so it probably didn't like the temperature.

I can remake it in brass but WTF is the thread

It's the same diameter as a 1/4" BSP but near as I can measure 22tpi.

If it isn't BSP of NPT or Threadform or 14mm ISO, WTF is it?

Anyone got a clue 'cause I haven't :whistling: