PVC and PVC Cement instead
You're on the right track, Claude, but duct tape can get hung up in a tight place...and if you hit a snag, it may not hold the two pieces of hose together...the LAST thing you want is for 'em to part company halfway through. So you want as smooth an outer surface a possible and a bond on the pipe that can't let go. I don't know whether PVC cement will bond to copper pipe, but i'll definitely keep the two pieces of hose on a piece of PVC. Butt the two ends of the old and new hose as tightly together as possible and let it set. Then, as you say, cut the hose behind the connector after you've pulled it through.I've always found that a blow dryer and dish soap are easier to work with than hot water to warm the hose and put it on the male-to male coupler...but if you want to mess with boiling water, that's ok.