Water sputtering out of the air gap holes during the drain cycle; a gurgling sound.
Grit on glasses, food particles on plates after a cycle, standing water. dishwasher drain cleaning
Look at the inlet where the dishwasher hose attaches to the disposal. Inside that nipple, there is a solid plastic or metal disc. If that disc is still there, your dishwasher has been trying to drain into a brick wall. Water sputtering out of the air gap holes