Tub Spout Copper Pipe Too Short

If the copper stub out penetrating through the wall is too short once the old spout is removed extend the copper tube length using the copper extension nipple.
Tub spout copper pipe too short. If you find that your copper pipe is too short for attaching your tub spout then with the right tools you can fix this problem yourself. 1 to remove tile and cut through the backer board remove and replace the copper nub by soldering a longer copper tube to replace the shorter one. The obvious thing would be go from the back and just replace the tube in the fitting but the back wall is plaster lath and in the middle of the living room. Measure the length of your tub spout from the back edge of the spout to the front where the threads start on the inside of the spout.
For slip on tub spouts your copper pipe should be a minimum 1 and a maximum 2 7 8 in length. That means with the tile you can no longer reach the threads in the spout. Total the two and add 1 4 inch. Copper pipes conduct heat well allowing hot water to stay warm.
This resulted in water coming out of the back of the spout when i use the shower diverter on the spout. The 1 2 copper pipe coming out of the wall is only an inch long and we need a minimum of two for the faucet to fit. This video to show you how to solder it but it does give me an idea of what to do where to place your male adapter and how to cut and measure the line for t. Now cut another piece of 1 2 copper 1 3 8 long you may now solder the piece in using two couplings or two sharkbite connectors.
How to install a slip on tub spout. Or if your copper stub out is already long you could buy a tub spout that slides onto bare copper pipe. The result is the overall length of the pipe you need. Cut a piece out of the copper pipe 1 long.
As i see it i now have two options to fix the problem. First figure how short you are let s say you re 3 8 shy of making a connection. They also offer wonderful durability flexibility resistance to bacteria and ease of installation. Then measure the distance from the surface of the wall to the back of the threaded elbow inside the wall.