Is your kitchen sink draining slower than usual, or not at all? If you have a garbage disposal, it might be the culprit. Don't reach for the phone to call a plumber just yet. With a little elbow grease and the right techniques, you can fix a clogged kitchen sink with a garbage disposal. Let's dive into the step-by-step process.
Understand the Anatomy of Your Sink and Garbage Disposal
Before you start troubleshooting, it's essential to understand the components of your sink and garbage disposal. The sink has a drain opening, which leads to the trap (the curved part of the pipe), and then to the drain pipe. The garbage disposal is located under the sink, connected to the drain pipe.
Safety First: Unplug and Turn Off the Garbage Disposal
Before you start working on your garbage disposal, ensure safety by unplugging it from the power source. You can find the plug under the sink. If your disposal is hardwired, you'll need to turn off the power at the circuit breaker.
Check the Most Common Causes of Clogs
Garbage disposals can clog due to several reasons. Here are the most common ones:

- Food Debris: Even though garbage disposals can handle a lot, certain foods like pasta, rice, and potato peels can cause clogs.
- Grease and Oil: These can solidify and stick to the pipes, leading to clogs over time.
- Non-Food Items: Items like utensils, glass, and metal can damage the disposal and cause clogs.
How to Fix a Clogged Kitchen Sink with Garbage Disposal
Manual Plunging
One of the simplest ways to unclog your sink is by using a plunger. Here's how:
- Fill the sink with enough water to cover the bell of the plunger.
- Place the plunger over the drain opening and ensure it creates a tight seal.
- Pump the plunger up and down vigorously for about 15-20 seconds.
- Remove the plunger and see if the water drains. If it does, great! If not, try again.
Using a Plumbing Snake
If plunging doesn't work, you might need to use a plumbing snake (also known as an auger). Here's how to use it:
- Insert the snake into the drain opening and push it down until you feel resistance.
- Turn the handle of the snake clockwise to push it further down the drain.
- Once you feel the clog, continue turning the handle to break it up.
- Slowly pull the snake out, turning the handle counterclockwise.
Cleaning the Garbage Disposal
If the clog is in the garbage disposal itself, you'll need to clean it. Here's how:

- Remove any large food particles from the disposal with tongs or pliers.
- Use a small brush to scrub the inside of the disposal, paying special attention to the blades.
- Run cold water while you're cleaning to help flush out any debris.
Preventing Future Clogs
Now that your sink is draining properly, it's essential to take steps to prevent future clogs:
- Run cold water while using the garbage disposal to help flush food particles down the drain.
- Avoid putting certain foods down the disposal, like pasta, rice, and potato peels.
- Regularly clean your garbage disposal to prevent a buildup of grease and food debris.
If none of these methods work, it might be time to call a professional plumber. They have the tools and expertise to handle more complex clogs. Happy DIY-ing!