| 摘要 |
A dishwasher having an improved water circulation arrangement for use therewith including a fluid circulating pump variously connectable with a lower rotating spray arm, a vertical spray column on the spray arm and an upper spray header. The spray header is positioned on the spray column such that the spray header receives fluid by means of a vertical supply stub extending concentrically within the spray column providing fluid communication between the pump and the spray header. A three-position sleeve valve is located on the lower end of the supply tube and is operative to selectively connect the fluid flow from the pump alternatively to the combination of all three spray devices; the combination of the spray arm and the spray column, or only the upper spray header.
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