"The per-capita water usage is 80 to 100 gallons per day in the United States. The activities that use the most water are flushing the toilet and taking showers and baths. A typical bathtub takes 36 gallons to fill while showers usually use 2 to 2.5 gallons per minute for newer shower heads and 4 gallons per minute for older heads."Link to the quote above People are using too much water for showers, baths, and flushing toilets.