I have slowly been gaining in confidence at simple plumbing jobs and have reached level 2: able to fit a new tap (level one was waste traps!). I want to fit a new mixer tap to my bath. The current pipework runs all the way to the tap thread - see this photo:
So far, so boring. But I got caught out once before with this, and I'm keen not to repeat mistakes. The last time I was unable to get the pipework to mate with the new tap - it was too rigid. A very expensive callout was necessary to get tails fitted.
So this time I came prepared; I bought some tails and a good quality pipe cutter. But! when fitted the bottom of the tail (300mm) will coincide exactly with a soldered pipe joint - see:
I can go back to plan A - fit the new tap direct to the pipe, since this pipe will have much more movement in it due to the long run under the bath. But if plan A fails, what should I do? Cut above the joint, and have a tail which will be in compression for years to come? Fit the tail compression fitting onto the joint? I'm confident to cut and join using compression fittings, but soldering is beyond me.