Why does a dishwasher have to drain through the sink plumbing?

• <div><p>Any drain in your house requires a water trap to prevent sewer gases from entering the home. Dishwashers don’t have an internal water trap, so they must use an external P trap. The most convenient P trap for the dishwasher is already in the plumbing under your sink.</p></div>

How do I know if my dishwasher drain hose is clogged?

• <div><p>Your dishwasher drain hose may have a clog if your dishwasher is full of water, your dishes aren’t getting cleaned, or water takes a long time to discharge into the garbage disposal.</p></div>

How do I get rid of standing water in the bottom of my dishwasher?

• <div><p>To get rid of standing water in your dishwasher, first try activating the drain mechanism by pressing and holding the cancel button for at least three seconds. If that doesn’t work, you’ll need to do some troubleshooting to <a href="https://www.angi.com/articles/how-to-drain-dishwasher.htm">drain the standing water from the dishwasher</a>. This will involve shutting off the power, then scooping out the water, cleaning the drain filter, and clearing the air gap. You’ll also want to run the garbage disposal and check the drain hose for clogs.</p></div>

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Verified Reviews for Dishwasher Installation pros in Foley, MN

*The Angi rating for Dishwasher Installation companies in Foley, MN is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Dishwasher Installation needs.

*The HomeAdvisor rating for Dishwasher Installation companies in Foley, MN is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Dishwasher Installation needs.

Last update on April 01, 2026

Reviewed in April 2026
Working with Ben and Warren at Craftsman’s Choice was an excellent experience from start to finish. Their professionalism and expertise really set them apart. The crew treated our home with respect, kept the work areas clean, and paid close attention to every detail. From the interior window...
CRAFTSMAN'S CHOICE, INC.
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Reviewed in February 2026
Contracted to install 6 bi-fold doors. Rich and Sharon arrived at the appointed time and installed these doors efficiently and effectively. They are very pleasant people and we would hire them again in a minute.
Creative Cabinetry
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Reviewed in March 2025
Did a great job on installing a fence at a completive price. Had some issue with the gate hardware and they fixed under warranty. Unfortunately, had issue with hardware again after warranty period and they fixed free of charge after I purchased the hardware. Responsive and great local business.
King Craftsman Fencing LLC
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Reviewed in February 2025
I needed an instant installation, and he arrived within 30 minutes, ready to work. Not only did he complete the job quickly, but the installation was done perfectly. The microwave looks great and works like a charm. He?s a great guy, professional, and efficient. Highly recommend!
Affordable Home Solutions
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Reviewed in June 2024
Very professional and trustworthy company. You can tell the installer truly values his work
Gladiator Plumbing & Heating, LLC
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Reviewed in December 2023
Jason is very professional, courteous, and trustworthy. He cleaned up the work areas as he went along and made sure everything was in full working order when he finished projects. He has done numerous home repairs, plumbing, electrical, remodeling, water cleanup, and new appliance installation...
Scalley's Handyman Service
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Reviewed in September 2022
Robbie communicated with me to make sure exactly what I was expecting. Very professional and respectful. Great job in installation and clean up. Highly recommend
Everything Gutters, LLC
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Reviewed in June 2022
Very well, The installer made sure every thing was completed and the work area clean.
Mad City Windows & Baths
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Reviewed in August 2020
Excellent communication, and tile was installed perfectly. Very pleased upon completion.
Hernandez Contracting
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Reviewed in June 2020
My sink and dishwasher we’re backing up. It went well overall the guy was super nice. But all he had to do was push reset on my garbage disposal. A pretty expensive learning experience.
Cutting Edge Sewer & Drain LLC
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Dishwasher Installation questions, answered by experts

Any drain in your house requires a water trap to prevent sewer gases from entering the home. Dishwashers don’t have an internal water trap, so they must use an external P trap. The most convenient P trap for the dishwasher is already in the plumbing under your sink.

Your dishwasher drain hose may have a clog if your dishwasher is full of water, your dishes aren’t getting cleaned, or water takes a long time to discharge into the garbage disposal.

To extend the lifespan, clean filters regularly, run cleaning cycles with vinegar, avoid overloading, and check for leaks.

To get rid of standing water in your dishwasher, first try activating the drain mechanism by pressing and holding the cancel button for at least three seconds. If that doesn’t work, you’ll need to do some troubleshooting to drain the standing water from the dishwasher. This will involve shutting off the power, then scooping out the water, cleaning the drain filter, and clearing the air gap. You’ll also want to run the garbage disposal and check the drain hose for clogs.

Yes, if your filter is damaged or simply too debris-filled to be of use, replace it with a new component. Check the instruction manual that accompanied the dishwasher for information as to the specific part. There are many online marketplaces that sell these parts, but perform due diligence to ensure you buy the right one.

The Foley, MN homeowners’ guide to dishwasher installation services

From average costs to expert advice, get all the answers you need to get your job done.

See all articles

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