Mystery pipe size??

[SJB]

Right, leaking CH return pipe today,in the bathroom floor combi boiler in bathroom cupboard, lifted boards, looked like 28mm copper, cut it out with recip saw as it was too tight for a slice, pipe was slightly too big for end feed coupler to go on.

took it to local pipecentre, bloke in there said it looked like 1 1/8" refrigeration pipe but put a fitting on and it wobbled, had a whirl at soldering up and building the lead solder up but no joy it absolutely piddled out.

Had to call it a day as it was after 6 and all merchants shut so had to leave customer with no boiler for the night and going back tomorrow first thing. any ideas what size it is or any suggestion as to what sorcery will get me onto normal size water pipe, got to be end feed as well as space in the notch is tight.

If needs be I'll take it all for the tat bag and repipe the return back to the boiler in 22 but i still need to get onto it properly

 

[albatross]

Old one inch copper. Knock a 28mm compression fitting on with a hammer and tighten.

 

[Gray0689]

Ask for an old to new inch to 28mm straight

 

[SJB]

I bloody said that in the merchants he said old inch was smaller than 28 not bigger. In fact I specifically went in there and asked for an inch to 28 coupler.

Grrrr, first time in ten years I've come across imperial inch, especially strange in a two bed semi.

 

[albatross]

Force your 28 slice on too, it will work, done it hundreds of times and it gives a rounded edge to get the fitting on.