Step 5 · Install the Push-to-Connect Fittings and New Pipe
With the pipe ends prepared and marked, you can now install the repair coupling. Measure the gap between the two pipe ends and cut a new piece of 1/2 inch copper pipe to that length. Deburr and clean both ends of this new piece just as you did before, and mark the insertion depth on both ends. Take one push-to-connect coupling and firmly push it onto one of the existing pipe ends. Use a slight twisting motion as you push. You should feel it pass the O-ring and then stop firmly as it seats against the internal tube stop. The depth mark you made should be right at the edge of the fitting. Now, insert one end of your new pipe piece into the other side of that coupling. Finally, take a second coupling and install it to connect the other end of the new pipe piece to the remaining existing pipe end.