Section 807.4 of the Uniform Plumbing Code states: “No domestic dishwashing machine shall be directly connected to a drainage system or food waste disposer without the use of an approved dishwasher airgap fitting on the discharge side of the dishwashing machine.Jul 6, 2021
Can I drain dishwasher directly into waste line?
Nothing in the code specifically prohibits you from connecting a dishwasher drain directly into a waste pipe below the floor, but doing so creates many potential problems.
Can you install a dishwasher without an air gap?
In these parts of the country, air gaps are certainly necessary. A plumber installing a new dishwasher will require you to have an air gap connection. If you do forgo an air gap, your house will not be up to code. If you were to ever attempt to sell your house, the inspector would require you to install an air gap.
Where does the dishwasher air gap go?
Air gaps should be located in places where that discharged water will go to the drain; not all over a countertop, and especially not underneath a countertop.
What happens if your dishwasher doesn’t have an air gap?
If your dishwasher doesn’t have an air gap, its drain hose may be looped up and attached to the bottom of the countertop near the sink. Although this is not code-compliant in most places, it serves the same purpose as the air gap—to prevent drain water from siphoning back into the dishwasher.
How does air gap work on dishwasher?
So, what exactly does a dishwasher air gap do? Put simply, it prevents drain water from backing up into your dishwasher and contaminating your freshly washed dishes with dirty drain water.
How do you run a dishwasher drain line?
Drain Connection With Air Gap (But No Garbage Disposal)
- Connect Hose to Air Gap. First, connect the dishwasher drain hose onto the small side of the air gap, mounted on the countertop or sink deck. …
- Connect Hose to Drain Pipe. …
- Secure With Hose Clamps.
Aug 23, 2021
How do I stop my dishwasher from getting an air gap?
Dishwasher venting prevents dirty water from re-entering the dishwasher. There are several common ways to do this: creating a high loop in the drain hose, connecting the hose to an air gap fitting, or installing a check valve on the drain line.
Can you bypass an air gap?
Check Valve / Air Gap Adapter
The simple device (at right) allows you to bypass the drain feature of your air gap faucet if you want to. It’s a check valve—it allows drain water to flow away from your unit but not toward it.
