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[–] 2 points 2 years ago (1 child)

But people use same water when handwashing too. One sinkful of soapy water first where you wash them, then a sinkful of clean water for rinsing and put them in the drying rack to dry. I believe the significantly is a debatable.

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  • [–] 2 points 2 years ago

    Modern dishwashers have to use less than 5 gallons of water for a normal load. To get the Energy Star rating, that has to be 3 gallons.

    A typical two-basin, 33 inch kitchen sink, each basin measures 16in x 14in. Each inch of depth in each basin is approximately 1 gallon. To fill up both basins to a depth of 5 inches, that would take 9.6 gallons, more than 3x more than an Energy Star dishwasher.

    So yes, significantly.

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