How do you replace copper pipe under dishwasher?

Replacing copper pipes under a dishwasher can be a DIY project with the right tools and knowledge. Here's a step-by-step guide:

1. Gather Tools and Materials:

- Adjustable wrench

- Pipe cutters

- Soldering iron

- Solder

- Flux

- Sandpaper

- Copper pipe (of the same size as the old pipe)

- Couplings or unions

- Shut off valves

- Plumbing tape

2. Turn Off Water Supply:

-Locate the main water shut off valve for your home and turn it off. This will prevent water from flowing into the area you're working on.

3. Disconnect the Dishwasher:

- Turn off the power to the dishwasher and unplug it.

- Disconnect the water supply line and drain hose from the dishwasher.

- Remove the dishwasher from its place.

4. Remove the Old Copper Pipe:

- Use the pipe cutter to cut the copper pipe on both sides of the dishwasher where it connects to the water supply lines.

- Be careful not to damage the surrounding area.

5. Clean and Prepare the Pipes:

- Clean the cut ends of the copper pipes with sandpaper to remove any burrs or debris.

- Apply flux to the ends of the pipes. This will help the solder adhere properly.

6. Solder the New Copper Pipe:

- Use a coupling or union to connect the new copper pipe to the existing pipes.

- Apply flux to the fitting and the pipe ends, then heat the fitting with the soldering iron until the solder melts and flows into the gap between the fitting and the pipe.

7. Repeat for Other Side (if necessary):

- If there's another copper pipe on the other side of the dishwasher that needs to be replaced, follow the same steps to remove the old pipe and solder in the new one.

8. Connect Shut-Off Valves:

- Install a shut off valve on each end of the new copper pipe. This will allow you to easily turn the water off in the future if needed.

9. Apply Plumber's Tape:

- Use plumber's tape to seal the connections between the shut-off valves and the water supply lines.

10. Reconnect the Dishwasher:

- Place the dishwasher back in its original position.

- Connect the water supply line and drain hose to the dishwasher.

- Plug the dishwasher back in and turn on the power.

11. Turn On the Water Supply:

- Turn the main water shut-off valve back on.

- Check for any leaks around the new copper pipes and fittings. If there are any leaks, tighten the connections or add more solder.

Once you're satisfied that everything is properly connected and leak-free, you can turn the dishwasher back on and test it.

Remember, if you're not confident in your plumbing skills or the copper pipe replacement seems complex, it's best to consult a professional plumber to avoid any potential problems or damage.