U.S. News & World Report - The average U.S. household pays up to $500 a year for water and sewer charges, according to the Environmental Protection Agency (EPA). But it's possible to cut the annual household water bill by $170, according to EPA estimates. On a national basis, if each household in the U.S. replaced older appliances with water-conserving models, consumers would save more than $18 billion and 3 trillion gallons of water annually, according to the EPA. Here are a few strategies for cutting costs and water usage. (See also: 8 ways to lower water heater costs)

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