Step 3 · Remove Old Shower Valve
With the old valve exposed, you can now remove it. Identify the hot supply, cold supply, shower riser (to the shower head), and tub spout pipes. Using a tubing cutter, make clean, straight cuts on all four copper pipes connected to the valve body. Ensure you leave enough pipe extending from the wall (at least a few inches) to connect the new valve. Once all pipes are cut, the old valve body should be free to be removed from the wall cavity.