Dishwasher Air Gap

[SavvyCat]

I was wondering if the dishwasher air gap is just a quaint tradition or codified. I didn't have one in my Utah house, but in Southern Nevada I do. I just bought a new kitchen faucet and realized it conflicts with the stupid wart on my sink. Is that thing really necessary these days?

 

[Snoonyb]

There are exceptions, however, they should be approved.

The most common, is the dishwasher discharge is installed as a "high loop", which, since you have chosen, a faucet, or elected to install a faucet using all the available holes, you'll need to reconfigure the appliance discharge.

 

[Sparky617]

I had one in my house in VA built in 1988, but not in my house built in NC 10 years later. I do have a high loop on my dishwasher drain to keep stuff from the disposal from going down to the DW.