Leaky Pipe Repair

Instead of using solder, try fixing leaking pipes with compression fittings.

Problem: You have a leaking pipe, you can't find a plumber, and you're uncomfortable trying to fix the pipe by soldering it.

Solution: You can use compression fittings to fix the pipe without using solder.

Equipment list:
 
two large adjustable wrenches
pipe joint compound or Teflon tape
small and regular size pipe cutters
two good-quality solid brass compression fittings
length of copper replacement pipe
 
*  Compression fittings consist of two compression nuts, two ferrules, and a body. The compression nut and ferrule are placed over the cut end of pipe and then tightened to the body. As the compression nut tightens, it crimps the ferrule to hold the fitting securely and prevent leaks.
 
*  One advantage of compression fittings is that you don't have to wait for the pipes to stop dripping before you install them. However, they are much more expensive than solder fittings.

1. Shut off the water supply at the closest shutoff valve, and turn off the water heater.
2. Turn on a water faucet upstairs to help drain the system. Then place a bucket under the pipe coming from the pressure relief valve on the water heater, and open the pressure relief valve. When the water slows to a trickle, you can begin removing the damaged pipe.
3. Removed the damaged section using a pipe cutter, and clean off any corrosion with steel wool.
4. Apply Teflon tape or paste to the threads of the compression fittings, and install fittings on each end of the water line. Slide the compression nut over the pipe so that the threads are facing the cut end. Then slide the ferrule onto the pipe, and hand-tighten the compression nut onto the body of the fitting. Hold the body with a wrench, and use a second wrench to tighten the compression nut securely.
5. Cut a new pipe to replace the damaged section. The new pipe will usually be about 2 inches shorter than the section you removed.
6. Slide the new pipe into place in one of the fittings, and slide the ferrules and compression nuts onto the pipe.
7. Slide the other end of the new pipe into the remaining fitting, and tighten the compression nuts to secure the pipe.
8. Shut off the upstairs faucet, and then turn on the water to check for leaks. Then turn the water heater back on.