<human>:  How can I fix my leaky faucet?
<bot>: The first step is to identify the source of the leak. If the source is a worn washer, you will need to replace it. Depending on the type of faucet, you may need to either replace the entire unit or just the washer itself. To make sure you have the necessary supplies for repairs, check with your local hardware store. Once you have the necessary supplies, turn off the water supply and use an adjustable wrench to loosen the faucet. Make sure you keep all the pieces together and store them in a safe place. Once the faucet is unscrewed, use pliers to remove the washer and replace it with a new one. Afterwards, reassemble the faucet by following the instructions included with the replacement washer. Finally, once everything is back together, turn the water supply back on and test the faucet to make sure it is not leaking.