A: Betty, this can be a pump or draining issue, but try this first before calling a service person.

Like a kitchen sink has a basket strainer at the drain opening to prevent debris from getting into your drain lines, most dishwashers have some type of strainer at the base of the rotating wash propeller at the bottom of the dishwasher. This strainer prevents chunks of debris from getting into the pump and drain system.

Make sure you follow your manufacturers instructions and recommendations to properly clean this strainer. If the instructions tell you to do this by hand, wear safety gloves because it's common to find bits of broken glass trapped around the strainer.

Once gunk and debris is cleared from the strainer, hopefully you'll find your dishwasher bottom to be as sparkling clean and streak-free as your glasses!