By Joel Bittle •
May 21, 2008
Get to know this symbol because chances are it’s going to be as ubiquitous as the blue star of EPA’s other conservation program, ENERGY STAR. Launched in 2006 the EPA’s WaterSense program seeks “to enhance the market for water-efficient products and services by building a national brand for water efficiency.” Viewed mainly as a program for water-only products like toilets, faucets, and irrigation systems, WaterSense does not include appliances, like dishwashers or clothes washers, that use both water and energy - those remain under the ENERGY STAR program. In 2007, the EPA released WaterSense specifications for high efficiency toilets and high efficiency bathroom sink faucets. They also offer certification programs for several irrigation professionals, include golf course irrigation auditors. Specifications for showerheads are in the works.
WaterSense is about to become very popular in the green building community. In their proposed changes to the LEED programs, the US Green Building Council removed some specifications for water saving credits, replacing them with, “WaterSense-certified fixtures and fixture fittings should be used where available.” It’s much easier to check for the WaterSense label than it is to gather the specifications for every fixture.
Editor’s note: On Monday, we published the first part of Low Impact Living’s report on American water use at sustainablog. Today’s second part takes a look at how we tend to use water excessively in our own homes. Keep an eye out for part 3, which will give you tips for reducing your water consumption, or visit LIL for the original publication of the report.
Key Causes of Excessive Water Use
There are many sources of water waste across all sectors of the economy. But, as homeowners and consumers, which ones do we have the most control over? Low Impact Living suggests you consider the following ideas when thinking about lowering your water use.
Direct Household Water Use
The typical household with three members uses over 300 gallons of water per day, both inside and outside. If you live in a warm climate where lawn irrigation is needed, then typically this is your single biggest source of waste – most lawns are over-watered, irrigated with inefficient equipment, and planted with plants not suitable to the local climate.
Inside, toilets, clothes washers and showers are the largest water users, representing 19, 15 and 12 gallons per person per day respectively (see chart to the right). There are huge inefficiencies here as well, especially in older homes. New appliances and plumbing fixtures can often shave 50% off of your water use.
All told, an average water-conserving home could cut the 300 gallon average above to less than 150 gallons with no sacrifice in comfort or performance. Specific things you can do to achieve these savings are listed below.
Indirect Water Use
In addition to the water that you use directly, you also consume water via the products and services that you buy.
In an effort to curb water consumption, the city of Austin is offering free, low-flow toilets to residents whose commodes are more than 12 years old and have tanks larger than 1.6 gallons.
Photo courtesy of Jarhelm via Wikimedia Commons
