A common way of repairing copper piping is by cutting out the section where there are pinhole leaks and replacing it with a new section of piping. You will need to solder the material together, which requires special tools and equipment. You will also need to shut off your water supply before performing any repairs.
Repairing longer sections of copper coupling will require a new sweat coupling, which you can purchase at a hardware store. You will need to determine the diameter of your copper piping ahead of time before you obtain a new copper coupling.
When repairing your copper piping, you will need to measure the size of the cut. The coupling should cut one inch longer than what you cut so that you can establish a good connection. After cutting out the section of the copper pipe that you are replacing, you will need to smoothen the edges of the coupling.
To get the best results, you should ensure that it’s dry on the inside of your copper pipes while you are soldering. We suggest stuffing a wool cloth into the pipes to absorb any of the water inside the pipe.