How to Replace Old Threaded Pipes

Threaded pipes are very quickly becoming outdated. Cutting and threading steel pipe requires a great deal of muscle. If your home was built before World War II, the pipes leading into your house are probably threaded steel. Special fittings allow home owners to repair pipes without using archaic steel pipes. Plastic and copper pipes are very common in new houses. Read on to learn how to replace old threaded pipes.

Instructions

Difficulty: Moderate

Things You’ll Need:

• Plumber's wrench
• Threaded pipe
• Rags

1. Turn off the water and drain the pipes in your house before you start your repair.
2. Examine the pipes and fittings to see how they are thread together. Somewhere on every pipe, there is a pipe union that will allow you to take the pipe line apart.
3. Determine which part of the pipe union the ring nut is threaded into.
4. Twist the ring nut with a plumber's wrench counterclockwise.
5. Screw pipes from the fittings now that you have created a break in the pipe line.
6. Hold a second plumber's wrench on the opposite end of the broken pipe to keep the fittings from turning while you unscrew.
7. Take a pipe that is threaded at both ends and screw it into the union that will connect the pipeline back together.

Tips & Warnings

• Make sure the new pipe is the same length as the pipe you are replacing.
• Repair the worst looking pipes first.

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