WaterWall is a feature specific only to the newest Samsung dishwashers. Instead of only using our typical radial spinning spray nozzles of the past, the DW80H9930, DW80H9950, and DW80H9970 use six high pressure jets and a water reflecting spray bar that glides back and forth across the entire bottom of the dishwasher as spinning spray nozzles at the top and middle racks spray water down throughout the dishwasher. This ensures nearly 100% water coverage throughout the dishwasher.
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