City of Houston -- Public Works and Engineering -- Resource Management Division -- Utility Customer Service -- FAQ's -- Page 8

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4200 Leeland / Houston, TX 77023
Phone: 713.371.1400

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Frequently Asked Questions

8. How much water do I use every day?

Personal habits, neighborhood water pressure, and the age/condition of fixtures make this highly variable. Studies have shown that 75% of indoor water use is in the bathroom. In general, it takes:

• 2-7 gallons to flush a toilet (1.6 gallons for modern toilets)

• 50-100 gallons for a ten-minute shower. (less for modern low-flow shower heads)

• 4-5 gallons per minute brushing teeth with water running

• 30-40 gallons for a bath.

• 10 gallons for a sink full of dishes, plus 4-5 gallons per minute if rinsing under running water

• 15-25 gallons for a dishwasher

• 25-35 gallons per clothes washer load, less in some modern models.

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