Yesterday I trim around a wall dent only to discover that I make big hole in one copper pipe (3/4 wide pipe, 1/16 was hole). Owner of house fixed it with 2" sleeve but we discover that I did another hole with 15 gage nail at another of that two 3/4 pipes. Hole is like 6" away from sleeve that someone else set who know when. Is it OK for code to use a 8" sleeve (or how is name of pipe that go ower other pipe) so I can have only 2 joints instead of 4 (with 8" pipe I can cut out old sleeve). Please respond till tomorrow so I can do something about it. First time when will be plumbing curse for 60$ around I will go there.