End-feed solder bits.

Or, thinking about it, I could use just a single end-feed T.

You can get slip couplers whcih don't have the stop in the middle and can slide over the pipes, if that helps.

Regarding end feed, the important thing is good cleanliness of fitting and pipe as it is with solder ring.

Then apply solder and assemble. Apply heat and touch solder onto mouths of fitting.

They are a capillary action just like solder ring and no harder to use other than you have to touch the solder on the fitting.

.andy

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You can get a slip coupler with solder ring, and no stop in the middle? Do screwfix have these?

Ensure the insides of the joint and outside of the pipe is clean (wire wool), and has a thin coat of flux. Where possible apply the heat and solder from opposite sides of the pipe, as solder will flow towards the heat.

I don't think so.

part number 7200 etc.

.andy

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Thanks. Is that really £3.03 each?!

Yes. They are a small volume item

.andy

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Whether you need one at all will depend on how much movement the 22mm pipe has in the line of the pipe. This maybe almost nothing or it may be more than

Provided you are very very careful you can get a T on when there is no slack at all. By allowing the pipe to enter the fitting only half depth ON EACH END. This still gives a good 10mm or so of length for the contact zone which is sufficient to get a good joint. This tactic would be even worse with solder ring fittings since the ring would come into the contact area making it an even bigger bodge.