Patent ID: 9265398
Filing Date: 2016-02-23
CPC Classification: A47L

Claim Text:
1. A dishwashing machine, comprising: a tub having a bottom wall, a top wall, and a plurality of side walls defining a wash chamber, a number of dish racks movably positioned in the wash chamber, a first sprayer located adjacent a first portion of the dish racks, a second sprayer spaced from the first sprayer and located adjacent a second portion of the dish racks, a first sump formed in the bottom wall of the tub, the first sump supplying first wash fluid to the first sprayer, a second sump formed in the bottom wall of the tub and spaced from the first sump, the second sump supplying second wash fluid to the second sprayer, a dispenser storing a wash chemistry, and a computing unit programmed to control dispensing of the wash chemistry by the dispenser so that the second wash fluid supplied by the second sump during at least a portion of a washing cycle intentionally has a higher wash chemistry concentration than the first wash fluid supplied by the first sump during the same portion of the same washing cycle.