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Water and Toilet Facts U.S Seasonal Drought Outlook

	WaterSense estimates there are currently 222 million residential toilets in the United States. (July 2007, US population 301.1M)
Table 1. Number of Toilets by Flush Volume and Potential Savings5

GPF

# of toilets (millions)

# of toilets replaced given 10% replacement of existing fixtures (millions)

Savings per flush by switching to 1.28 HET (gpf)

5.0	67	6.7	3.72
3.5	33	3.3	2.22
1.6	122	12.2	0.32
Total	222	22.2	------

Calculation 2.Total Daily Savings (If 10% of all existing toilets replaced with 1.28 gpf HET) 5.0 gpf: (6.7 x 106 toilets) (3.72 gpf) (6.8 flushes/toilet/day) = 169,483,200 gallons/day 3.5 gpf: (3.3 x 106 toilets) (2.22 gpf) (6.8 flushes/toilet/day) = 49,816,800 gallons/day 1.6 gpf: (12.2 x 106 toilets) (0.32 gpf) (6.8 flushes/toilet/day) = 26,547,200 gallons/day

Total Daily Savings 245,847,200 gallons/day

Calculation 3.Total Annual Savings (245,847,200 gallons/day) (365 days/year) = 89,734,228,000 gallons/year or 89.7 billion gallons/year.

United States Environmental Protection Agency:
Residential toilets account for approximately 30 percent of indoor residential water use in the United States -equivalent to more than 2.1 trillion gallons of water consumed each year.

United States Environmental Protection Agency:
Over the course of you lifetime, you will likely flush the toilet nearly 140,000 times.

American Water Woks Association:
Leaking toilets (even the ones you only hear at night) can lose 30 to 500 gallons per day.

United States Environmental Protection Agency:
20% of all toilets leak.

The United States Geological Survey:
Many of our toilets have a constant leak -- somewhere around 22 gallons per day. This translates into about 8,000 gallons per year of wasted water, water that could be saved.

Water and Toilet Facts U.S Seasonal Drought Outlook

WaterSense estimates there are currently 222 million residential toilets in the United States. (July 2007, US population 301.1M)