Rainwise Maintenance On-going maintenance is essential to keep your RainWise installation working properly. We are counting on your RainWise project to prevent polluted stormwater from going into our waterways. Your cistern and/or rain garden is made possible with public funds. In return, RainWise requires homeowners to maintain their RainWise project for five years. Cistern Maintenance Maintaining your cistern is easy! We have several resources for you to learn how to take care of your cistern installation. Watch our cistern care video in English, Spanish, or Vietnamese. Download our Maintenance Guide in English, Spanish, Vietnamese, Traditional Chinese, or Cambodian. Learn how to install a pump to a cistern. Visit the cistern maintenance page Rain Garden Maintenance Rain gardens require routine maintenance that even a amateur gardener can do! We have several resources to help you maintain your RainWise rain garden. Watch a video on weeding and mulching your rain garden in English, Spanish, or Vietnamese. Watch a video on watering your rain garden English, Spanish, or Vietnamese. Download our Maintenance Guide in English, Spanish, Vietnamese, Traditional Chinese, or Cambodian. Visit the rain garden maintenance page Understand Your RainWise Commitment Read the RainWise Homeowner Agreement, which customers sign before receiving a rebate. Inform the next homeowner about RainWise If you are selling your home which has a RainWise installation, please email us at rainwise@seattle.gov. Your RainWise project must be listed in your Seller’s Disclosure Form to let the next owner know about your cistern and/or rain garden. Questions? Not sure where to find arborists’ wood chips for fresh mulch? Need help with rain garden plants and weeds? Wondering how often or how long to water your new rain garden? Contact the Garden Hotline at 206-633-0224 or help@gardenhotline.org Multi-lingual services provided. Learn more
