We are promoting safe and effective graywater use and are always looking for innovative ways to conserve water. Using graywater can be an important way to reduce potable water use and flows to our sewer system. Imagine using water from your bathroom sink, shower or tub or your clothes washer to help grow the plants in your landscape.
To pioneer the use of graywater in the City, we offer a Laundry-to-Landscape Graywater Program, a Residential Graywater Permit Rebate, and a Graywater Design Manual for Outdoor Irrigation. We also continue research on the effective and safe uses of graywater and other alternate water sources for on-site reuse in San Francisco.
Graywater is water from showers, bath tubs, washing machines, and bathroom sinks. It is water that contains some soap but is clean enough to water plants. For more information on graywater, see our Graywater FAQ.
San Francisco Graywater Design Manual for Outdoor Irrigation
We have developed a technical resource for homeowners and professionals who want to install graywater systems for outdoor irrigation in San Francisco. This manual provides a detailed step-by-step process for designing and installing laundry-to-landscape systems, as well as the basic steps for designing and installing branched drain and pumped systems. The manual provides an overview of the benefits of graywater systems, when and where to install these different systems, permitting requirements, what products to use, and operation and maintenance requirements.
Laundry-to-Landscape Graywater Program
The SFPUC's Laundry-to-Landscape Graywater Program is not accepting applications at this time. A new laundry-to-landscape program is expected to launch in early Fall 2015. If you would like to be notified when the program is available, please email firstname.lastname@example.org
to watch an episode from PBS' Ask This Old House on installing a laundry-to-landscape system for one our local program participants!
Graywater Permit Rebate Program
For graywater projects that require a permit from the Department of Building Inspection (required for all other graywater systems except laundry-to-landscape), we offer a rebate up to $225 towards the cost of your permit. The permit rebate will help cover the cost of obtaining a permit from the Department of Building Inspection for your site-specific graywater system. The rebate is available for residential graywater systems with subsurface irrigation.