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>

What is the standard size of a dishwasher?

• <div><p>A standard <a href="https://www.angi.com/articles/dishwasher-sizes.htm">dishwasher size</a> is 24-by-24-by-35-inch for a built-in unit. The depth and height line up perfectly with most kitchen countertops and cabinet sizes. </p></div>

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Verified Reviews for Dishwasher Installation pros in Tamarac, FL

*The Angi rating for Dishwasher Installation companies in Tamarac, FL 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 Tamarac, FL 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 November 22, 2025

Reviewed in November 2025
Installed a disposal... did it right!
GE HOME REPAIR INC
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Reviewed in September 2025
Mr. Pavel is very professional and courteous. Mr. Pavel responded immediately to my job request, scheduled an appointment with me next day. Mr. contacted me to let me know he could come earlier and was promptly at my house. My Kenmore Elite Dishwasher was not powering up. Mr. Pavel was thorough...
Mr.P appliance repair
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Reviewed in October 2024
The installer was very professional, prompt, well experienced.
GE Home Repair Inc
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Reviewed in February 2024
Juan worked on my kitchen remodel before moving into our home. He moved water lines that were tucked in a wall that was removed to add an open concept kitchen island, he also installed the appliances that were replaced like the sink, dishwasher, fridge ice maker and hose bib. Even though the...
IIVV Inc.
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Reviewed in June 2023
John contacted me and arrived the same day. He ordered the part, communicated regularly with me and completed the job in 2 days. He was very professional and reinstalled my dishwasher better than the original installation. Thank you
J A Appliances
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Reviewed in February 2023
Everything went well with our dish washer re-installation. Travis was efficient in diagnosing the issue. He was pleasant and professional. I would highly recommend.
TH Factory Service
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Reviewed in October 2022
Soap dispenser install great and fast
Doctor Granite
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Reviewed in September 2022
William did an excellent job installing our door. Was on time and left everything clean.
W & Z Construction, Inc.
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Reviewed in March 2022
It was done Dishwasher tack was installed
Junius Quality Service
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Reviewed in May 2021
Efficient and clean install. Very courteous
CED Home Services
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Dishwasher Installation questions, answered by experts

Installation includes leveling the unit, connecting water and electrical lines, securing the unit, and testing for function and leaks.

To create a siphon break and remove any chance of dirty sink water or water that backs up into the sink from getting into your dishwasher, your dishwasher drain hose needs to have a high loop or an air gap device as part of its installation. All building codes require at least a high loop. In many places, it’s necessary to install an air gap device to meet the code.

DIY installation or repair is possible with the right skills and tools, but if not done correctly, it can often lead to water leaks or improper connections.

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.

A standard dishwasher size is 24-by-24-by-35-inch for a built-in unit. The depth and height line up perfectly with most kitchen countertops and cabinet sizes.

The Tamarac, FL 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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