Mar 16, 2015

Residential Greywater Treatment Receives NSF/ANSI Certification

The certification allows homeowners, homebuilders and water and sewer agencies to use onsite home water recycling technology

Nexus eWater NSF/ANSI 350 greywater

Nexus eWater announced that it is the first company to receive certification to the NSF/ANSI 350 global standard for residential greywater treatment for its NEXtreater home water recycler.

The certification enables California builders, water and sewer agencies and homeowners to build drought-resilient homes by safely recycling two out of every three gallons in the home for non-potable, approved uses. The 2013 California Plumbing Code allows greywater treated to the stringent NSF/ANSI 350 standard to be reused in a range of applications.

“Certification of our NEXtreater is an historic milestone for residential water conservation and the war on drought; the drought-resilient home has now arrived,” said Mark Petroff, CEO of Nexus eWater. “Homes in California and other water-scarce states can now safely and inexpensively recycle 2 out of every 3 gal in their home. Despite California’s declared drought emergency, there were no certified products on the market—until today. Safe, affordable and reliable home water recycling is here at last.”

The NSF/ANSI standard was jointly developed by federal, state and local health authorities, advocacy groups such as the Natural Resources Defense Council, Alliance for Water Efficiency and others, as well as plumbing code bodies and leading water treatment companies.

The NSF/ANSI 350 certification process involved:

  • Six months of continuous, third-party testing with regularly scheduled sampling throughout;
  • No routine service or maintenance of the appliance allowed during the test period;
  • Extensive stress testing; and
  • A review of compliance with design specifications and literature.

“Our Australian engineering team did what many thought impossible,” Petroff said. “We built a reliable, affordable home water recycling solution that could meet the highest applicable water quality standards over a grueling six-month test—and all without maintenance. Not only did our NEXtreater pass these stringent water quality tests, we passed with flying colors. The majority of the measurements were below the threshold of detection for suspended solids, E. coli and CBOD. The pH was spot on, and the turbidity was in the same range as typical tap water.”