How much water do I use when I …

Does a bath or a shower use more water? Is it worth it to install a high-efficiency toilet or shower head? Take a look at the numbers below and decide for yourself. When you use less water, it’s good for your wallet, good for the city of Avon Lake and good for Lake Erie.

 

Activity Number of Times* Circumstances Water Used*
Total Use (gallons)*
Toilet Five Conventional toilet 3.5 – 5 gallons per flush 17.5 –   25
Low-flow toilet 1.6 gallons per flush 8
High-efficiency toilet 1.28 gallons per flush 6.4
Shower One (8 minutes long) Pre-1993 showerhead 3 – 8 gallons per minute 24 – 64
Standard showerhead 2.5 gallons per minute 20
Low-flow showerhead 1.5  gallons per minute 12
Bath Once Tub 1/4 to 1/3 full 7.5 – 15 gallons 7.5 – 15
Full tub 30 – 45 gallons 30 – 45
Shaving Once 1 full basin 1 gallon 1
Running water, five minutes 2.2  gallons per minute 11
Brushing teeth Twice Brush  and rinse 0.25  – 0.5 gallon 0.5 – 1
Running  water, two minutes 2.2  gallons per minute 4.4
Hand  washing Seven  (15 seconds) Standard  aerator 2.2  gallons per minute 7.7
Low-flow  aerator 0.5  gallon per minute 0.875

* Per person per day

Kitchen

Activity Number of Times* Circumstances Water Used* Total Use (gallons)*
Cooking Washing  produce One  full kitchen basin 1 –  2 gallons 1 –  2
Running  water, three minutes 2.2  gallons per minute 6.6
Dishwasher Once – full load Water-conserving model 4.5  – 7 gallons 4.5  – 7
Standard  cycle 10 – 14 gallons 10  – 14
Dishwashing  by hand Once Full  basin/wash and rinse 2 –  4 gallons 2 –  4
Running  water, five minutes 2.2  gallons per minute 11

* Per day

Miscellaneous

Activity Number of Times Circumstances Water Used Total Use (gallons)
Laundry Once Front-load  washer 13  – 20 gallons/load 13  – 20
Conventional  top-loader 35  – 50 gallons/load 35  – 50
Car  washing Once Five  full two-gallon buckets 10 gallons/wash 10
Hose  for 5 minutes 5/8-inch  hose 32
Lawn  watering During  hot dry spells, Kentucky bluegrass needs ¾ of an inch of water twice a week,  turf-type tall fescue needs ½ to ¾ of an inch of water twice a week, and  buffalo grass needs ½ to ¾ of an inch every other week.

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