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Research About Water Conservation Products & Best Practices



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To learn about the latest in water-efficient technology, click on one of the categories below:

Commercial Food Services
Dishwashers  |  Food Steamers |  Ice-Makers |  Pre-Rinse Spray Valves (PRSVs) 
Commercial food service represents one of the larger water using sectors in the non-residential category.Commercial Food Services 

Commercial and Residential Faucets

Faucets have not been a primary focus of water efficiency advocates, given that the Energy Policy Act (EPAct) of 1992 and subsequent EPAct legislation have limited faucet flows to 2.2-gpm (at 60 psi).  It is only now that serious attention (by the U.S. EPA's WaterSense product labeling program) is again being given to residential faucets and the possible new opportunities for further efficiencies.   Commercial and Residential Faucets

High-Efficiency Clothes Washers (HEWs)

High-efficiency clothes washers (HEWs) utilize technological advances to deliver excellent wash performance while saving both water and energy. Resource efficient models use 35 - 50% less water. This reduction in water use means less energy needed to heat the water (approximately 50% less energy). Over 100 models of residential and commercial high-efficiency washers are offered by companies such as Continental, Dexter, GE, Huebsch, Maytag, Speed Queen, Staber, Unimac, Wascomat, and Whirlpool. High-Efficiency Clothes Washers (HEWs)

Landscape Irrigation Technologies

Research and Savings Studies  |  Water Agency Pilot Programs  | 
Irrigation Controller Manufacturers

Save 41 gallons per household per day -- That's what one study indicates could be water conserved using weather-based automatic irrigation controllers. The savings are reported to be even greater on commercially sized landscapes (as much as 472 gallons per day or more!). And with this reduction in water use comes an additional benefit: a companion reduction in dry-weather runoff and reduction in waterborne contaminants. Landscape Irrigation Technologies

Medical and Health Care Systems
Health care delivery in the U.S. has certainly become a "high-tech" industry sector. Whether in the dental office, the clinic, the physician's office, or the hospital, equipment is sophisticated and evolving. And some of the older equipment uses exceedingly high amounts of water, usually for cooling. Technologies designed to replace the traditional "once-through" cooling are making their way into some of this equipment.

Moreover, the health care industry sees the benefit of the "GOING GREEN" and has developed the Green Guide for Health Care, which addresses wateruse within the industry's facilities.  Medical and Health Care Systems

Potential Best Management Practices
This study addresses four of candidates of best management practices:
1) Residential and small commercial weather-based irrigation controllers
2) Pre-rinse spray valves for the food service industry
3) Steam sterilizer retrofits
4) X-ray film processor recycling units
Download the report: -  PBMP Report- Year One (PDF) 

1) On-Premise Laundries
2) High-Efficiency Plumbing Fixtures - Toilets and Urinals
3) Submetering of Multi-Family Residential Properties
4) Commercial-Industrial Cooling Water Efficiency

Download the report: - PBMP Report- Full Year Two Report (PDF - 4.46 MB)

Potential Best Management Practices (PBMP) Reports

Residential Dishwashers
The American Housing Surveys for the U.S. (1985 to 2003) confirm an increasing trend in the installation of dishwashing appliances.  58% of all housing units possessed automatic dishwashers in 2003. At the same time, 88% of all new housing stock (4 years old or less) were being equipped with them. Residential Dishwashers

Residential Hot Water Distribution Distribution of hot water within residential dwellings has become one of the "hot topics" in water conservation circles!  Residential Hot Water Distribution

Toilet Fixtures

High Efficiency Toilets (HETs)  |  Drainline Studies  |  MaP and UNAR  |  Plumbing Standards  |  Ultra Low Flow Toilets (ULFTs)  |  Flappers & Flush Valve Seals    

Toilet fixture replacement represented one of the most popular water efficiency initiatives of the 1990s, as drought conditions motivated water providers to implement water conservation programs. In these programs, older 3.5- and 5.0-gallons per flush (gpf) toilet fixtures in residences were replaced with 1.6-gpf fixtures. Today, many water providers with aggressive replacement programs are approaching a level of "saturation" in their residential sector wherein the majority of residential toilet fixtures are 1.6-gpf models. Therefore, many water providers have moved on to other priorities in their conservation programs.   Toilet Fixtures

Urinal Fixtures

High Efficiency Urinals  |  Non-Water Urinals 

Different types of flushing urinals have existed in North America for many years with little technological change. In the early 1990s, however, the introduction of the first non-water urinal in the U.S. changed the perspective of water efficiency proponents. Since that time, hundreds of thousands of non-water urinals have been installed here, savings millions of gallons of water each year. Today, manufacturers are developing and refining urinal models that flush at 0.5-gpf (1.9-liters) and below, some with as little as 1-pint of water (0.5-liters).   Urinal Fixtures

Vehicle Washing There are certain questions that always seem to arise when "conservation" of water becomes a local issue. A number of studies have been completed over the years that describe what new technologies and practices are available to that sector.   Vehicle Wash Facilities

Wet Cleaning

The replacement of traditional dry cleaning practices in the the South Coast Air Basin with alternative technologies is underway. Read about the background for this dramatic change in the way clothing will be cleaned:  Wet Cleaning Background Information  & Wet Cleaning

The California Urban Water Conservation Council was created to increase efficient water use statewide through partnerships among urban water agencies, public interest organizations, and private entities.  The Council's goal is to integrate urban water conservation Best Management Practices into the planning and management of California's water resources.

Learn more details at the California Urban Water Conservation Council


Edited by Carolyn Allen, Managing Editor of Solutions For Green

Publication Date: 6/23/2009
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