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How Much Water Does a Dishwasher Use?


 

Important!

Answer:

Newer dishwashers use an average of 3-4 gallons of water.

 


 

More Info: A new Energy Star qualified dishwasher uses 4 to 6 gallons of water per cycle, while other models can use from six to 16 gallons depending on the age and model.

how-much-water-does-a-dishwasher-use

 

As of August 2009, Energy Star qualified dishwashers must use 5.8 gallons of water per cycle or less. A dishwasher bought before 1994 uses around eight more gallons of water compared to a new Energy Star qualified model. Newer models often have the option to use a shorter cycle for less soiled dishes or can be set to skip the pre-rinsing stage.

Here are a few water-saving tips for the environmentally conscious dishwasher:

  • Fill it up… but not too full. Unless you are in a rush to have clean dishes, wait until the dishwasher is filled up but still has enough space around the dishes for proper cleaning.
  • Instead of rinsing your dishes before putting them in the dishwasher, just scrape off the bigger scraps and let the washer do the rest. Some models even have a pre-rinse that uses far less water than by-hand rinsing if you are worried about hard-to-clean dishes.
  • Saving energy is good too. Since the main energy cost when using a dishwasher is in heating the water, which is also needed when washing by hand, the more water-efficient your dishwasher is, the more energy it conserves. Consider letting dishes air-dry over night to save even more on that electric bill instead of using the dishwasher’s drying cycle.

Resources

 

“How much water do you use?.” City of Greensboro, NC – Official Website. N.p., n.d. Web. 18 May 2010. http://www.greensboro-nc.gov/residents/yourwaterusage.htm.

 

“Dishwashers : ENERGY STAR.” Home : ENERGY STAR. N.p., n.d. Web. 18 May 2010. http://www.energystar.gov/index.cfm?fuseaction=find_a_product.showProductGroup&pgw_code=DW.

 

“Water Use Calculator.” TAMPA FLORIDA USA municipal government – official web site for the City of Tampa, Florida. N.p., n.d. Web. 18 May 2010. http://tampafl.gov/dept_water/information_resources/saving_water/Water_use_calculator.asp.