You'll want to minimize the elbows as they can reduce flow, I think. You'll also need something to cut the pipe with, whether it be copper or pvc. You'll find detailed pictures and instructions for the project here . This was the first full billing period after the repair. This use of 1300 cubic feet is exactly one half what it was for the same period last year.
Copper tubing has many advantages over galvanized and other types of piping.
It is considerably smoother than galvanized. As a result, water encounters far less friction when passing through copper pipe than galvanized or black. Because of the reduced friction, it is common to use one size smaller copper tubing than galvanized for an identical run.