A clogged dishwasher drain can lead to standing water, unpleasant odors, and ineffective cleaning performance. Regular maintenance and cleaning of the dishwasher drain ensure that your appliance runs smoothly and efficiently.

This guide on how to clean dishwasher drain will walk you through the steps necessary to clean your dishwasher drain and prevent future blockages. With just a few simple tools and a bit of time, you can keep your dishwasher in top condition and extend its lifespan.
Why is it Important to Clean Your Dishwasher Drain?
Over time, food particles, grease, and soap scum can build up in the dishwasher drain. This buildup can clog the drain and prevent proper water drainage, leading to standing water and unpleasant odors. It can also affect the performance of your dishwasher, resulting in dishes that are not cleaned properly.
Regularly cleaning your dishwasher drain helps to remove any debris or buildup and ensures that the drain is clear and free-flowing. This not only helps to prevent clogs but also improves the overall efficiency and effectiveness of your dishwasher.
Tools and Materials Needed
To clean your dishwasher drain, you will need the following tools and materials:
Screwdriver
You may need a screwdriver to remove the bottom rack of your dishwasher or to access the drain.
Baking Soda
This versatile ingredient helps to break down and remove grease, grime, and odors.
Vinegar
Vinegar is a natural cleaning agent that helps to dissolve stubborn buildup and disinfect the dishwasher drain.
Old Toothbrush
An old toothbrush can be used to scrub and clean hard-to-reach areas in the dishwasher drain.
Distilled White Vinegar
Distilled white vinegar is a powerful natural cleaning agent that helps to break down grease and grime in the dishwasher.
8 Step-by-step Guides on How to Clean Dishwasher Drain
Step 1: Empty the Dishwasher
Before starting the cleaning process, make sure the dishwasher is completely empty. Remove all dishes, utensils, and the bottom rack to give you full access to the drain area.

This ensures you can thoroughly clean without any obstructions and prevents any debris from getting onto your clean dishes later.
Step 2: Locate the Dishwasher Drain
The dishwasher drain is typically located at the bottom center of the dishwasher. Look for a circular or grated cover beneath the lower spray arm. Depending on your dishwasher model, the drain may sit directly below the removable filter or be part of an assembly that includes the filter.
You may need to consult your dishwasher manual for specific instructions on accessing the drain.
Step 3: Remove Debris from the Drain Cover
Using a screwdriver, carefully remove the drain cover and set it aside. You may notice a buildup of food particles, grease, and soap scum on the surface of the cover. Use an old toothbrush or cloth to remove any debris and rinse the cover with warm water.
It is essential to regularly clean the drain cover as it can quickly become clogged, leading to standing water and unpleasant odors.
Step 4: Check the Drain for Visible Blockages
Look inside the drain for any visible blockages such as large pieces of food or utensils that may have fallen into the dishwasher accidentally.
If you find any obstructions, use tongs or your hands (when wearing gloves) to remove them carefully.
Step 5: Use Baking Soda and Vinegar
Mix equal parts baking soda and vinegar in a bowl until it forms a paste-like consistency. Pour the mixture down the drain and let it sit for 15-20 minutes. The chemical reaction between the two ingredients helps to break down any stubborn buildup in the drain.
The baking soda also helps to neutralize any odors, leaving your dishwasher smelling fresh.
Step 6: Pour Boiling Water

After the baking soda and vinegar mixture has sat for a while, boil a pot of water. Carefully pour the hot water down the drain to help flush out any remaining debris or buildup.
Be cautious when pouring boiling water, as it can cause burns if not handled carefully.
Step 7: Run a Rinse Cycle
To further flush out any loosened debris or residue, run a rinse cycle with no dishes in the dishwasher. This will help to ensure that all remnants of food particles and grease are completely washed away from the drain.
It is recommended to run a rinse cycle after every cleaning to keep the dishwasher drain clear and free-flowing.
Step 8: Replace the Drain Cover and Bottom Rack
Once you have completed all the above steps, replace the drain cover and make sure it is secured tightly. Then, put back the bottom rack of the dishwasher and close the dishwasher door.

Your dishwasher drain should now be clean and free from clogs and odors.
Following these steps on how to clean dishwasher drain regularly, at least once a month, will help to prevent future blockages and keep your dishwasher running smoothly.
Do You Need to Use Professionals?
While cleaning your dishwasher drain is a straightforward process, there are situations when seeking professional help might be necessary. If you’ve followed all the steps above but still notice issues such as persistent standing water, unusual noises, or leaks, it could indicate a more complex problem beyond a clogged drain.
Professionals have the tools and expertise to diagnose and fix underlying issues, such as damaged parts, plumbing problems, or electrical malfunctions. Additionally, if you’re uncomfortable performing the cleaning process yourself or are concerned about potentially voiding a warranty, calling a professional can provide peace of mind and ensure the job is done safely and effectively.
How Much Will It Cost?
The cost of cleaning your dishwasher drain depends on whether you choose to do it yourself or hire a professional. If you opt for a DIY approach, the expenses are minimal as you likely already have most of the required tools and materials at home, such as baking soda, vinegar, an old toothbrush, and a screwdriver. At most, you might spend a few dollars to restock these items if needed.
However, if you decide to hire a professional service, the cost can range from $75 to $200, depending on the complexity of the issue and your location. Factors such as the severity of the clog, whether replacement parts are needed, and labor rates in your area can affect the final price. It’s always a good idea to get a quote from a trusted technician beforehand to understand the costs involved. Regular maintenance can help you avoid frequent professional visits, saving money in the long run.
Additional Tips for Maintaining a Clean Dishwasher Drain
- Run hot water before starting the dishwasher to ensure that the water entering the appliance is already hot, which helps with dissolving grease and food particles.
- Scrape off larger pieces of leftover food from dishes before placing them in the dishwasher. This will help prevent any large chunks from getting into the drain.
- Use a dishwasher cleaner once a month to keep your appliance clean and fresh. These cleaners are specifically designed to remove buildup and odors from the dishwasher drain and interior.
- Regularly check and clean the dishwasher filter, as it can also become clogged with debris and affect the performance of your appliance.
With these tips and step-by-step guides on how to clean dishwasher drain, you can easily maintain a clean, odor-free, and efficient dishwasher.
Frequently Asked Questions
Q: How Often Should I Clean My Dishwasher Drain?
A: It is recommended that you clean your dishwasher drain once a month to prevent clogs and maintain the performance of your appliance. However, if you notice any standing water or unpleasant odors, it may be necessary to clean the drain more frequently.
Q: Can I Use Bleach to Clean My Dishwasher Drain?
A: It is not recommended to use bleach as a cleaner for your dishwasher drain. Bleach can damage and corrode the rubber seals and plastic components in the appliance.
Q: Why is My Dishwasher Not Draining Water?
A: If your dishwasher is not draining water, there may be a clog in the drain. Follow the steps outlined above on how to clean dishwasher drain to remove any obstructions and improve drainage.
If the issue persists, it may indicate a problem with the dishwasher pump or drain hose, and it is best to consult a professional for repairs.
Q: What Should I Do If My Dishwasher Continues to Have Drainage Problems After Cleaning the Drain?
A: If you have followed all the steps for cleaning your dishwasher drain and are still experiencing drainage problems, it could indicate a more significant issue with your appliance. It is best to contact a professional technician for further diagnosis and repairs. Remember, regular maintenance can help prevent these issues in the future.

Conclusion
Keeping your dishwasher drain clean is an essential part of maintaining the efficiency and longevity of your appliance. By following the step-by-step guide on how to clean dishwasher drain and incorporating routine maintenance practices, you can prevent clogs, eliminate unpleasant odors, and ensure your dishwasher operates at its best.
Regular cleaning not only extends the lifespan of your dishwasher but also improves its performance, leaving your dishes spotless with every wash. Taking a few minutes each month to care for your dishwasher will save you from costly repairs and the inconvenience of a malfunctioning appliance.
Professional Focus
Angela Ervin, a former interior designer turned blogger, specializes in kitchen design and renovations. Through her website, she blends her passion for cooking with design expertise, sharing practical and creative ideas. Known for balancing functionality and beauty, Angela’s insightful content has made her a trusted voice in home design and lifestyle.
About the Author
Angela Ervin, an experienced interior designer and blogger, combines her passion for kitchen renovations with storytelling. Living in Petersburg with her family, she enjoys cooking and testing her projects firsthand. Known for her humor and relatable style, Angela shares creative, functional design insights through her content, making her a trusted voice in home design.
Education History
University: Virginia Commonwealth University
Degree: Bachelor of Fine Arts (BFA) in Interior Design
- Angela’s education at VCU focused on mastering core interior design principles, including spatial planning, color theory, materials selection, and sustainable design practices.
- She gained hands-on experience through studio projects and collaborative design exercises, which honed her ability to create functional and aesthetically pleasing environments.
- Her coursework also emphasized problem-solving and practical applications of design, preparing her for real-world projects like her self-directed kitchen renovations.
- The program’s strong foundation in both technical skills and creative expression shaped Angela’s ability to seamlessly integrate form and function in her work.