Ed Sirett wrote:
Roger Mills wrote:
Ed Sirett wrote:

Imperial copper tube is fairly rare IME.

It's something to watch out for when you think the pipework is around
35-40 years old. I might come across it a few times a year and I'm dealing
with pipes at least 2 days a week.

It's quite easily identified tho.

IME imperial pipes have big chunky hex fittings, rather than the neater
more modern compression fittings (e.g the ones with the 'ears')

Cheers

Paul.