But the shower itself is manufactured using 19mm (assuming its chromed copper, haven't checked) so it must be available. I just want to make tube longer
As above please tell me if you know who (UK retailer) sells 19mm diameter chrome copper tube for an existing shower riser. I can find plenty of 15mm and 22mm but 19mm..... like hen's teeth?
What the big deal if I use 19mm chrome plated steel tube instead of copper - will I lose that much heat...