
What Causes A Dishwasher Hose To Clog?
Generally, the dishwasher hose will clog due to the buildup of food particles, hard water deposits, or a hardened clog lodged in the garbage disposal components. Clogged or broken sprayer arms will also slow the movement of water in the dishwasher, which will cause the dirty water to pool and clog the hose.
Also, a broken or damaged drain motor will cause the dishwasher hose to clog as well. Be sure to troubleshoot a few different scenarios to determine what is causing the issues with clogging.
Wondering how to clean your dishwasher's sprayer arms? Take a look at this post: How To Clean Clogged Dishwasher Spray Arms
How To Prevent A Clogged Dishwasher Hose
Great question! There are several methods that will prevent your drain hose from clogging.
- Set your water heater to 120-125 degrees Fahrenheit for the ideal temperature.
- Don't overfill the dishwasher.
- Keep plastic in the top rack.
- Pack baking sheets, trays, and plastic cutting boards along the sides without blocking the jets or sprayer arms.
- Avoid allowing your dishes to sit in the dishwasher for days, as this will prevent the growth of harmful bacteria and germs.
- Clean the filter regularly.
The Baking Soda And Vinegar Method
Using baking soda and vinegar to clean the dishwasher is easy and inexpensive. Mix one cup of baking soda and one cup of vinegar, and pour the solution into the bottom of the empty dishwasher.
Allow it to sit for 20 minutes. Once the water in the dishwasher starts to drain, run the rinse cycle with hot water to flush the dishwasher.
The combined ingredients should dissolve slight clogs and dissipate any grease plugging the draining hose. Also, cleaning your dishwasher often will help prevent your sprayer arms from clogging with debris.
Overall, providing quality maintenance will extend the lifespan of your dishwasher and will keep it functioning at its best.
The White Vinegar Method
Periodically run the dishwasher empty with one cup of white vinegar to deep clean the appliance. The white vinegar method is excellent for removing stains and mineral deposits.
Are you wondering if dishwashers help reduce energy and water usage? Take a look at our article that discusses this exciting topic: Do Dishwashers Waste Or Save Water And Electricity?
Will A Clogged Drain Hose Cause Water To Pool In The Bottom Of My Dishwasher?

Suppose there is a small amount of water standing beneath the spray arms. That is okay if the water is one cup or less in volume.
If water is covering the bottom of the dishwasher or leaking from the door and it is presenting a nasty odor, there is an issue with the draining hose that connects the appliance to the garbage disposal and the kitchen sink. The drain hose is likely clogged.
Standing water should not be occurring in fully functional dishwashers. If this is happening regularly, something is blocking your draining hose. To address this issue, you could check the dishwasher draining hose or your kitchen plumbing.
Also, please remember that you can contact a professional to help troubleshoot the appliance.
How Do I Know If My Dishwasher Drain Hose Is Clogged?
The first sign that the drain hose is clogged is when you open your dishwasher to empty your clean load of dishes and discover a small pool of dirty water standing in the bottom of the dishwasher.
Another sign is when you hear the dishwasher having difficulty draining during the final rinse cycle. Typically, the final rinse water is the cleanest. However, if your appliance struggles to flush out the purest water, you can be sure that something is clogging the drain hose.
Also, if you notice a foul odor wafting from the kitchen sink, this could be a sign that the drain hose is clogged. Because after the water flows through the drain hose, it goes through the kitchen garbage disposal and drains through the kitchen sink plumbing.
If the drain hose is clogged, debris will build up inside the garbage disposal, which will cause the dirty dishwasher water to pool in the kitchen sink.

Can You Use Drano In A Dishwasher To Unclog The Hose?
No, never use Drano or any drain/pipe unclogging agent in a dishwasher because it's caustic and corrosive. The chemicals in Drano that are specifically for unclogging pipes will damage the dishwasher motor and erode rubber seals, causing them to break down quickly.
For the best results, use dishwasher-approved cleaning and unclogging products.
How Long Can You Extend A Dishwasher Drain Hose?
You cannot extend a dishwasher drain hose past its manufactured footage. However, you could purchase a dishwasher drain extension kit compatible with your dishwasher's brand, make, and model in several different lengths to accommodate your kitchen.


Click here to view a six-foot universal dishwasher drain hose on Amazon.

Will Bleach Unclog A Dishwasher Hose?
No, bleach will not unclog the dishwasher drain hose. Also, it is advised not to use bleach to clean dishwashers. Safety tip: do not use bleach and vinegar together. The combination will cause chlorine gas in your kitchen, which is considered lethal.
Have you noticed water inside your dishwasher's salt compartment and wondered why? Click here to read more: Should A Dishwasher's Salt Compartment Have Water In It?
Safety Considerations For Operating Dishwashers
Use the following as a guide for running a dishwasher effectively and safely. Please keep in mind that following these recommendations will improve the functionality of your appliance and prevent it from clogging and requiring expensive repairs.
- Always place knives and other sharp items pointed down in the utensil basket.
- Place glassware gently into the dishwasher, and don't crowd the glasses.
- Avoid overloading the dishwasher— overloading it will prevent the dishes from getting clean, and they could break.
- Wait until the dishwasher has cooled before removing the dishes.
- Always close the door after loading or unloading to prevent accidental falls.
- If you have small children, consider adding a child safety lock.
- Do not allow children or pets to play inside the dishwasher.
- Store the dishwashing solutions away from children and pets.
- Always follow the dishwasher owner's manual maintenance instructions.
- Don't fill the dispenser cups until ready to run the appliance.
- Do not mix dishwasher solutions with other cleaning products.
- Not every dish can go in the dishwasher; read your labels.
- Do not remove the labels from the dishwasher detergent bottles.
In Closing

Thank you for reading our article!
Today we talked about how to replace a dishwasher drain hose and how to prevent your drain hose from clogging. Also, we discussed why appliance maintenance is vital to keep your dishwasher functioning and your kitchen clean!
Please check out some of our other posts before you go to help you learn more about dishwashers:
How To Clean Clogged Dishwasher Spray Arms
Can You Put Crocs In The Dishwasher?
What Dishwashers Have Food Grinders?