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>

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Verified Reviews for Dishwasher Installation pros in Lenox, MI

*The Angi rating for Dishwasher Installation companies in Lenox, MI 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 Lenox, MI 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 December 18, 2025

Reviewed in December 2025
He was fantastic did a great installing in my new dishwasher. Super friendly, quick neat and excellent priced . Would recommend them in a heartbeat. 5 out of 5
Rusty Nail Handyman LLC
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Reviewed in February 2025
Job ran late with needing parts but was well done when complete. Great heat and water pressure now, and couldn't have been better with the completed installation.
JR Hudson Plumbing, LLC
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Reviewed in April 2024
Both the sales team and Eric Furlow who did the installation were great. Eric was excellent in the installation and explaining the new items I needed to be aware of in order to get the best from my new door and opener. Highly recommended them.
Precision Garage Door of Southeast Michigan
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Reviewed in June 2023
Dave removed the old Microwave and installed the new one in less than 1 hour. He cleaned up after the job and disposed of the old appliance. I would recommend his company for any appliance install.
Mains Appliance Install
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Reviewed in July 2022
Very professional and installation was well done. Water heater installed perfectly along with a couple of other plumbing upgrades. Would highly recommend them. First time using this company and will definitely use them again should the need ever arise.
Shelby Mechanical, LLC
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Reviewed in November 2021
Gene, the installer, called me immediately. He said it would be two weeks to install and it was. I would recommend Gene to everyone! You do not find customer service like this anymore! It was fast, courteous service and I love my shutters!
Designer Blinds of Michigan
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Reviewed in November 2021
The sales men Brian was really thorough in the products they had to offer. The Install Josh did was super clean and really worked with my needs.
The Carpet Guys LLC
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Reviewed in October 2021
Absolutely loved dealing with Billy in customer service. He made sure that my claim was handled professionally and that the technician was on time all I had to pay was the small service fee and my dishwasher was back up and running
First Premier Home Warranty
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Reviewed in September 2021
Kevin was on time and appeared to be a good guy. He was personable and completed the dishwasher install. However I could not open my drawer due to install not being set back in hole enough. I called him and he said he would come back to fix. Well he never did come back to install properly and...
Ideal Appliance Installation
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Reviewed in February 2021
Sam did a great job installing the dishwasher. I bought it at COSTCO, The installers they sent COULD NOT Iinstall it. SO I CALLED SAM IT WAS THE BEST CHOICE I COULD HAVE MADE!! So you should call SAM to it"s the BEST CHOICE YOU COULD MAKE TO.
Ambient Services
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Dishwasher Installation questions, answered by experts

Maintenance includes regular filter cleaning, checking water connections, and ensuring that the unit operates at optimal efficiency without blockages.

Only if the dishwasher isn’t made of stainless steel. The corrosive chemicals in bleach will stain stainless steel and can also cause further damage. To stay on the safe side, stick with an extra cycle of vinegar to banish any lingering odors.

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.

Yes, vinegar is an excellent homemade solution to clean a dishwasher. Its acidity will cut through any buildup, while its natural deodorizing capabilities will take care of any nasty smells.

Most dishwashers are designed with a standardized width of around 24 inches and can fit into most kitchen spaces intended for dishwashers. However, the height and depth might vary slightly, requiring careful measurements to ensure a proper fit. Certain specialized or compact dishwasher models might deviate from the standard size to accommodate specific needs or non-standard spaces. While many dishwashers adhere to a typical size, measuring the available space accurately is crucial to guarantee a seamless installation.

The Lenox, MI homeowners’ guide to dishwasher installation services

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

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