In a typical 10-minute shower, you can use from 25 to 50 gallons of water.
The average shower head pumps out about 19 liters (or 5 gallons) per minute [source: NCCES]. So, that's 50 gallons (189.3 liters) of water every morning. You could, of course, take a bath instead because 50 gallons would fill the tub.
If you go for a green shower head that limits the water output, you would use about 2.5 gallons per minute or 25 gallons overall. But that's still using more water in just 10 minutes than families in Africa use in 24 hours [source: CCF].
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