Become a RainWise Contractor: Three Day Orientation

July 14, 15 & 16, 2020 6-8pm

FREE three-day orientation for Contractors and Landscape Professionals to learn the requirements to install cisterns and/or rain gardens on private property in specific Seattle neighborhoods through RainWise, a City of Seattle and King County rebate program. This three-day orientation is a required prerequisite for all who wish to qualify to perform RainWise installations.

For more information and to register:

Note: This orientation is in English. For Spanish, Vietnamese and Chinese Language Contractors, join us July 28-30, 2020. Register at: or contact ECOSS at for language assistance.

RainWise Contractor Academy: A FREE Comprehensive Training

Dates TBD due to COVID-19 but tentatively scheduled for August 2020

Interested in running your own business? Like to work with your hands outdoors? We’re offering 48-hours of FREE training to help you become an independent landscape contractor for Seattle’s RainWise Program. This training is designed for people who need more than a Three-day Orientation, as described above.

Sign up for the RainWise Contractor Orientation (above) to attend a Q & A on both the RainWise Orientation and the Academy on July 14. The 3-day Orientation is for people who already have the business, design and construction skills to become RainWise Contractors right away. We encourage people who need additional business and skill-building training to apply for the comprehensive 12-week program provided by the RainWise Academy (see the Academy flyer linked below).

Please email Bob Spencer at for more information and to receive application materials.

For more information about the RainWise Academy: RainWise Academy Flyer

Be RainWise!

With every storm, rain carries pollutants off our roofs, driveways and other hard surfaces to local creeks, Lake Washington and Puget Sound. During big storms, the sheer volume of this “stormwater” can cause sewer overflows, and erode hillsides and stream banks. RainWise rain gardens and cisterns can help control this runoff with your help.

RainWise is a rebate program that helps eligible property owners manage stormwater by installing rain gardens and/or cisterns on private property. This prevents flooding, adds attractive landscaping, and can provide water for summer irrigation.

The rebates may cover most or all of the cost of installing cisterns and rain gardens on your property. To receive a rebate, you must live in an eligible combined sewer overflow (CSO) basin.

Read the 2020 GSI Overview and Accomplishment Report

Check My Eligibility

You could be eligible for a RainWise rebate to install a rain garden or cistern!

What is a rain garden?

A rain garden is a shallow depression containing spongy soil and a variety of plants that thrive in northwest sun, soil and moisture conditions. It collects water from your roof downspout and allows it to safely soak into the ground. Rain gardens can be designed to fit your property.

What is a cistern?


A cistern is a large above-ground container used to collect roof water. It is like a huge rain barrel and can hold 200 or more gallons. During the winter, cisterns store rain to reduce the amount of water entering the sewer system. In the summer, this water can be used for watering. Cisterns come in several sizes and shapes to fit in a variety of situations.

Sightline Institue – Using Cistern Water for Edibles

The RainWise program is supported by four outreach teams that work across the city.

Connect with RainWise!


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Contact the Garden Hotline

Email Us

Check My Eligibility

You could be eligible for a RainWise rebate to install a rain garden or cistern!