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Webinar: Commercial-scale Greywater Systems: Case studies from Orenco Systems and ReWater

2nd March 2016 @ 4:00 pm - 5:00 pm

Greywater Webinar Series Part 2

We’re starting out the year with a fabulous new webinar series covering more advanced greywater topics, relevant for both the homeowner and professional. One registration will enable you to view all six webinars, either live or recorded after they air.

If you attend the live webinar you will be able to ask questions directly to the presenters.

The webinars will be held live from 4-5pm on Wednesdays (dates below).

  • January 20th. Greywater Irrigation and Plant Health
  • February 3rd. Installing Simple Pumped Greywater Systems
  • February 17th. Incorporating Greywater Installations into Your Landscaping Business.
  • March 2nd: Commercial-Scale Greywater Systems
  • March 16th: Whole-House Residential Greywater Systems
  • March 30. Understanding the California Plumbing Code for Greywater

Cost: Fee for the series is $50 to $150 sliding-scale*.

Register here (more info on series topics below)

This event is co-sponsored by NorCal Community Resilience Network and Transition US

*Wondering what sliding-scale means? A sliding-scale fee means that participants choose the amount to pay along the scale (between $50 and $150). People who can afford to pay more help subsidize people who can’t afford it. This helps us keep our workshops affordable to more people. We thank you for paying as high as you are able to on the scale.


Commercial-scale Greywater Systems: Case studies from Orenco Systems and ReWater

  • March 2nd

Orenco’s AdvanTex Greywater Recycling Systems treat greywater to levels that allow it to be used for toilet flushing, cooling towers, water features, and landscape irrigation. Learn more about how these systems work and where you can use them.

ReWater has designed and installed high-end residential and commercial greywater irrigation systems since 1990. Founder Steve Bilson will discuss the technical details of a ReWater System, costs, installation skills needed, water savings, and maintenance needs with the case study of a systems installed in Santa Monica at the NRDC headquarters.


Jeff Pringle is an Account Manager for the Western US Region at Orenco Systems®, Inc., a wastewater equipment manufacturing firm based in Sutherlin, Oregon. In this role, he works to manage and grow customer accounts in California, Nevada, Arizona, and Hawaii. Since joining Orenco in 2005, Jeff has become a frequent presenter for the company, providing training for regulators, engineers, installers, service providers, and electricians, as well as other Orenco customers.
Jeff has an Associate of Applied Science degree in digital systems technology from Umpqua Community College in Roseburg, Oregon. In his spare time, he enjoys doing nothing at all.

Stephen Wm. Bilson founded ReWater Systems in Palo Alto in 1990. After working two years as a participant on the California Graywater Ad-Hoc Committee, Mr. Bilson sponsored Assembly Bill #3518, which passed unanimously and resulted in the first-of-its-kind state greywater irrigation law, Water Code Section 14875 et seg. In 1992, he received US Patent #5,217,323 on the greywater irrigation system that is now known as the ReWater System, still the only commercially available greywater irrigation system in the US. In 1992-1994, he worked two years 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, Appendix G of the California Plumbing Code (CPC).

From 1990 until now, Mr. Bilson has worked only on greywater irrigation related projects, ranging from simple residential systems saving a few hundred dollars in water per year to sophisticated commercial systems saving thousands of dollars in metered water and thousands of dollars in wastewater costs per year. He is responsible for more permitted greywater irrigation systems in California than everyone else combined. He’s helped clients as philosophically diverse as the Natural Resources Defense Council to the US Marine Corps with landscapes as horticulturally diverse as desert to almost tropical. Lately, he’s consulting for architects, engineers, builders, plumbers, and landscaping professionals working on greywater-irrigated, sometimes backed up with harvested rain, projects across the arid West. Many of these projects are LEED certified.

Whole-House Residential Greywater Systems

  • March 16th

Whole house greywater systems collect greywater from showers, sinks, and washing machines, filter it and distribute it through drip irrigation. Systems like Nexus E-Water treat the water so it can be used for toilet flushing or spray irrigation (NSF 350 certified), IrriGRAY systems can be monitored on your smartphone, and GreyFlo’s filter is cleaned with compressed air (bypassing a common concern from regulators regarding potential cross-connection issues). Learn about these three different whole house greywater systems in this informative webinar, with founders of the companies presenting on their products. We’ll cover costs, maintenance, installation requirements, water savings, and general pros and cons of the systems.

Understanding the California Plumbing Code for Greywater

  • March 30

This presentation will take an in-depth look at the California greywater code, how to get a permit, and learn about efforts across the state to make legal installations easier for residents.

Presenter: Laura Allen is a founding member of Greywater Action and has spent the past 15 years exploring low-tech, urban,sustainable water solutions. She is the lead author of the San Francisco Graywater Design Guidelines for Outdoor Irrigation, and authored The Water-Wise Home: How to Conserve and Reuse Water in Your Home and Landscape (Storey Press, 2015). She has a BA in environmental science, a teaching credential, and a master’s degree in education. Laura leads classes and workshops on rainwater harvesting, greywater reuse, and composting toilets. Laura has presented widely on greywater reuse, including at the Water Smart Innovations Conference, Bioneers, California Environmental Health Association conference, and California Landscape Contractors Association conference. She’s participated in state greywater code developments in California and Washington State and was on a committee to write a draft composting toilet code for IAPMO. Laura was featured in an Ask This Old House episode on greywater and was the 2014 recipient of the Silicon Valley Water Conservation Award of Water Champion.

Register here

Cancellation Policy
If you can’t make the live broadcast date you can still view a recording of the webinar after it’s happened.  If you would like to cancel your purchase entirely, we offer a partial refund on advance cancellations.

If canceled

  • Three business days or more prior to the webinar date – 75% refund
  • Two business days through the webinar broadcast start time – no refund
  • Any time after the webinar broadcast – no refund

All cancellations must be in writing and must include:

  • Name of registrant
  • Email address


2nd March 2016
4:00 pm - 5:00 pm