Skip to main content

Connect Hoses to New Air Gap — Install the New Air Gap Body (Replacement)

Beginner3 hours

Part of project

How to Clean or Replace a Dishwasher Air Gap · Step 7 of 9

Helpful?

In this video

Take the new air gap assembly and connect the hoses. The smaller hose from the dishwasher attaches to the smaller, angled inlet. The larger hose going to the garbage disposal attaches to the larger, straight outlet. Push the hoses on as far as they will go to create a tight seal. Slide the hose clamps into position over the nipples and tighten them securely with the screwdriver.

Goal: Attach drain hoses to the new unit

Used in this video

  • Screwdriver (brand: HDX, Screwdriver_Type: Flathead)Tightening the hose clamps
153.4K views1.3K5 minutes
RepairClinic.com

641K subscribers

View Channel

FAQs

How can I tell if my dishwasher drainage problem is definitely caused by a clogged air gap?

Look for standing water in the bottom of your dishwasher, slow draining, or water backing up into your sink when the dishwasher attempts to drain. A visual check of the air gap cap for visible debris or a gurgling sound during the drain cycle can also indicate a clog. Sometimes, water might even spray from the air gap cap.

What are the most important safety precautions I should take before starting this project?

Always turn off the power to your dishwasher at the circuit breaker and shut off the hot water supply valve located under the sink before beginning any work. Have towels ready to absorb any spilled water, and consider wearing gloves to protect your hands from grime and potential sharp edges. Never work with electrical components or water without cutting power first.

The project lists several tools; which are absolutely essential if I'm on a tight budget or a beginner?

For cleaning, you'll primarily need a Phillips head screwdriver to remove the air gap cap and a small brush or pipe cleaner for clearing debris. If replacing, you'll also definitely need soft-jaw pliers for hose clamps, a bucket for catching water, and the new air gap unit itself. Many items like the UV flashlight or specific brand towels are optional comforts rather than strict necessities.

When should I attempt to clean the air gap versus opting for a full replacement?

Start with cleaning if you suspect a blockage from food debris, grease, or mineral buildup within the existing unit. If cleaning doesn't resolve the drainage issue, or if the air gap body itself is cracked, leaking, severely corroded, or damaged beyond repair, then replacement is the necessary next step. A damaged body won't hold a seal even after cleaning.