Mary, also available (at our local Gedimat) is the 'push-fit' type of connector which can be used with ordinary cuivre. The joints, 'T's and right angles a much more expensive than copper solder joints etc, (by the way they are known as 'Yorkshire fittings' in France, not to be confused with the pre-solder Yorkshire fittings in the UK!!!) but can be undone with a little plastic tool and allow some fiddling around. I found them very handy when plumbing round the back of some existing/fixed kitchen units. Also in Leroy Merlin in Pau I have seen some plastic plumbing which is a fawn colour and the joints are made by glue welding them together. Can't remember what it is called, was tempted to use it but a 3 hour round trip to get that last piece which I would have been bound to have forgotten put me off somewhat. Dig out the welding lance and give the traditional method a go... Good luck, Steve.