I used to be an audio mixer and know a thing or two about acoustics. I need something to dampen it. Best thing would be like a rubber stopper actually plugging it. Any sound coming out is just going to reverberate in that big sink. But that defeats the purpose of the air gap entirely. (which...
Thanks for the YouTube Link tip. I changed it so it should work.
So do you think that my airgap just sounds like a normal airgap? I can't imagine everyone in CA (or however far reaching this code is) is dealing with this.
Yeah I may try to tie it directly to the disposal as a last resort...
Did you find a solution to this? I'm dealing with the same thing. Bosh 800 rated to 40db (I'm aware the rating has nothing to do with the drain noise, but one doesn't buy the quiet one expecting there to be loud parts).
When my dishwasher drains, there is a loud dishwasher drain noise. It's a gurgling sound emanating mostly from the airgap. The dishwasher drains to the airgap, which drains to a junction at the top of the disposal.
Here's a YouTube link to the offending sound. At the end, I cover it to show...