ReWater® was founded in 1990 in Palo Alto to help California meet its water needs through legal greywater irrigation. In 1996 we moved to San Diego to help that city satisfy it’s one-of-a-kind federal water reuse mandate. In 2009 we moved up to Thousand Oaks to better serve Los Angeles and the entire state. We now lead the graywater irrigation industry with experience and through innovation.
ReWater tirelessly worked with the legislature, builders, architects, engineers, contractors, and landscapers to provide legal greywater irrigation systems that meet the long-term needs of homeowners, property managers, and California’s future.
ReWater® systems have been in operation for over three decades. Our systems use greywater like an irrigation system is supposed to. And they back-up your irrigation programs with city water so your landscape gets watered even when you’re on vacation. Each system comes with our sophisticated but easy-to-use 5th generation controller, which can be adapted to harvest rain and/or satisfy the City of LA. Through decades of experience and innovation, our cost-effective systems feel simple while providing everything you could want.
We put everything you and your professionals need to know on our website. If you or your design team would like to know more for a specific project, please call us at (805) 716-0104.
We remove the guess work
ReWater’s three decades of R&D, design, manufacturing, permitting, plumbing, landscaping, and consulting experience removed the experimentation from legal greywater irrigation. No competitor can honestly say anything even close to that.
We know what it takes to provide you a completely viable, easy to use, easy to maintain greywater irrigation system. And we’ll give you the price before you make any design commitments.
So, please call us at (805) 716-0104 to discuss your project!
Early Adoption and Activism
Using greywater was illegal when Stephen Bilson founded ReWater® Systems in Palo Alto in 1990. After serving two years on the California Graywater Ad-Hoc Committee, in 1992 Mr. Bilson sponsored Assembly Bill #3518, which passed unanimously in both houses (almost unheard of). AB3518 resulted in our nation’s first-of-its-kind state greywater irrigation law. That law is California Water Code Section 14875 et seg.
In 1993, Steve Bilson received US Patent #5,217,323 on the greywater irrigation system that has evolved into what is known as the ReWater® System. It’s still the only commercially available greywater irrigation system in the US that is legal in all states.
In 1992-1994, he worked with virtually every local, regional, and state building safety and health protection agency in California to help write the first state greywater irrigation code for single-family systems. Since then, he’s worked with those stakeholders and others pursuant to further legislation to improve the code several times. Now included are multi-family and commercial systems. The state graywater code is now Chapter 15 of the CPC.
Mr. Bilson has also been involved in other states’ efforts to legalize greywater irrigation. He continues to warn about the failure of NSF 350-certified systems that were only approved by using “greywater” that did not include hair and lint.
Proprietary systems across the arid West
From 1990 until now, Steve Bilson and ReWater have worked only on greywater irrigation projects. Those projects range from simple home systems saving a few hundred dollars in water a year to sophisticated commercial systems saving tens of thousands of dollars in water and tens of thousands of dollars in wastewater costs per year.
For years, he was the Responsible Managing Employee for ReWater®’s landscape contractor’s license #798547 and provided hands-on supervision of numerous residential and commercial landscaping projects all using greywater.
He’s responsible for more permitted i.e. legal greywater irrigation systems in California than everyone else combined. Along the way, he’s helped clients as philosophically diverse as the Natural Resources Defense Council to the US Marine Corps and with landscapes as diverse as desert to almost tropical.
Lately, this award winning innovator has been consulting for architects, engineers, and builders working on greywater-irrigated projects. Many of those systems are backed up with rain to satisfy Low Impact Development (LID) requirements. Some of these single-family and multi-family projects have been LEED Platinum or Gold certified.
If you’re a building professional, please call us to see how we can help your projects cost-effectively satisfy California’s increasingly greener rules.
Press and Trade
The Water Zone. The Toro Company.
Commercial-Scale Greywater Systems: Case Studies from Orenco Systems and ReWater
Gray water gardening: Best practices
Water the Lawn With Your Saturday Night Bath
Two-Year Permit Approval Nightmare Finally Ends For Santa Monica Resident
ePlan: A help or a hindrance?
Water Use Efficiency and Jobs
Kill Your Plumbing
Toro Irrigation Set To Host 2008 Watersmart Symposium
Graywater systems recycle bath, laundry water
Share a bath, save a lawn
Legal Greywater Class by Steve Bilson of ReWater® in Costa Mesa