## How to Change Plumbing Under Kitchen Sink
Replacing the plumbing under your kitchen sink is a relatively simple task that can be completed in a few hours. By following these step-by-step instructions, you can save yourself the cost of hiring a plumber.
### Tools and Materials
Before you begin, gather the following tools and materials:
– Adjustable wrench
– Basin wrench
– Pliers
– Screwdriver
– New plumbing parts (supply lines, drain assembly, etc.)
– Plumber’s putty
– Bucket
– Towels
### Step-by-Step Instructions
1. **Turn off the water supply.** Locate the shut-off valves under the sink and turn them off. If there are no shut-off valves, you will need to turn off the main water supply to your home.
2. **Disconnect the supply lines.** Use an adjustable wrench to loosen the nuts on the supply lines that connect the sink to the water supply. Be careful not to overtighten the nuts, as this can damage the supply lines.
3. **Disconnect the drain assembly.** The drain assembly is the assembly that connects the sink to the drain pipe. To disconnect the drain assembly, loosen the nuts on the slip nuts that connect the assembly to the sink. Be careful not to damage the slip nuts.
4. **Remove the old plumbing parts.** Once the supply lines and drain assembly are disconnected, you can remove the old plumbing parts. Be sure to clean the area where the new plumbing parts will be installed.
5. **Install the new plumbing parts.** Install the new plumbing parts in the reverse order of the steps you took to remove the old plumbing parts. Be sure to use plumber’s putty to seal the joints between the plumbing parts and the sink.
6. **Reconnect the supply lines and drain assembly.** Once the new plumbing parts are installed, reconnect the supply lines and drain assembly. Be sure to tighten the nuts on the supply lines and slip nuts on the drain assembly securely.
7. **Turn on the water supply.** Once the plumbing is reconnected, turn on the water supply and check for leaks. If there are any leaks, tighten the nuts on the supply lines or slip nuts on the drain assembly until the leak stops.
### Troubleshooting
If you encounter any problems while replacing the plumbing under your kitchen sink, here are some troubleshooting tips:
– **If there is a leak at the joint between a plumbing part and the sink**, tighten the nuts on the plumbing part until the leak stops. If the leak persists, you may need to replace the plumbing part.
– **If there is a leak at the joint between the drain assembly and the drain pipe**, tighten the slip nuts on the drain assembly until the leak stops. If the leak persists, you may need to replace the drain assembly.
– **If there is no water coming out of the faucet**, check to make sure that the water supply is turned on and that the shut-off valves under the sink are open. If the water supply is on and the shut-off valves are open, you may need to replace the faucet.
By following these step-by-step instructions and troubleshooting tips, you can replace the plumbing under your kitchen sink in a few hours and save yourself the cost of hiring a plumber.
### Additional Tips
Here are some additional tips for replacing the plumbing under your kitchen sink:
– If you are not comfortable working with plumbing, it is best to hire a plumber to do the job for you.
– Be sure to turn off the water supply before you begin working on the plumbing.
– Use caution when using tools and materials.
– If you have any questions, consult a qualified plumber.