My GE dishwasher,a potscrubber 800 leaks a very small amount of water out of the air gap(less than an ounce),when it starts to drain.I’ve checked the disposal hose,the disposal,the drain hose.Everything is 100% clear,no blocks whatsoever.What would be the cause of this?
Since you have checked the entire drain path, I would say it is probably the air gap that itself.