The new dish washer air gap keeps overflowing every time we use the machin. I have replaced it with new air gap, but the result is the same . Where did I go wrong? I have used the tubes that came with the machin and I have followed instruction.

Thanks
Wayne

Have you tried replacing the float inside the machine at the bottom?

You have a partial blockage between the air gap and the disposal or drain or possiably a kincked hose (the big one).

Does this drain into the sink drain or a disposar? If it's a disposer you should verify that the steel plug was knocked out of the drain inlet on the disposar and that there is nothing blocking the darin. The air gap has two hoses but not the same size, which side did you dedicate between the dishwasher and the air gap, big or little?

Since the washer is drained to the sink disposal unit does the disposal bubble up and water flow to the sink when the washer drains?

Thanks all for trying to help. I cut the large hose that goes to the desposal to 18", that did the tric.. Thanks all.