Laundry to Landscape Greywater Rebate

Program Overview

Contra Costa Water District (CCWD) offers rebates of up to $50 as an incentive for customers to install a Laundry-to-Landscape Greywater System that uses discharge water from a single domestic clothes washer for landscape watering. Reusing water from a clothes washer to water your garden is a simple and easy way to “go grey.”


Rebates are available for residential properties within the CCWD Retail and Wholesale Service Area.

Rebate Amount

The rebate is 100%, up to $50 towards the material cost of:

  • One (1) Brass 3-way diverter valve and
  • One (1) air-vent/air admittance valve

Limit one rebate per property for the life of the program.

Irrigate your yard with greywater from your washing machine.

Launrdy House

Terms & Conditions

  • Laundry to Landscape Greywater System (greywater system) must be installed prior to submitting a rebate application
  • Rebate application must be postmarked within 90 days of equipment purchase date
  • Program is subject to available funds and CCWD reserves the right to alter the program at any time without notice
  • Applicant will allow CCWD staff to inspect the laundry to landscape greywater system as a condition of receiving rebate
  • Applicant certifies that necessary permissions have been obtained from the property owner, if applicant is not the owner
  • Applicant is responsible for complying with all applicable codes, regulations and permit requirements
  • Generally, a laundry to landscape greywater system will not require a permit. However, it must be installed following California Plumbing Code. Check with your local building or permitting department for additional rules to consider when planning your project.

Steps to Apply

  • Review the Greywater System Installation Resources, especially Greywater Action.
  • Purchase the qualified equipment and install the Laundry-to-Landscape Greywater System.
  • Please mail or email a completed Greywater Rebate Application (PDF), your original sales receipts for the qualifying equipment, and pictures of your completed installation including the 3-way valve, air relief valve, and mulch basins.
  • Keep a copy of the application and your receipts for your records.
  • Application must be postmarked within 90 days of equipment purchase date
  • Rebate check will be processed in 6-8 weeks.

Greywater System Installation Resources

  • CCWD recommends applicants hire an experienced contractor to install the greywater system. However, if the homeowner is installing the system, it is recommended that they consult with an experienced contractor.
  • Greywater Action - Learn about installing a laundry to landscape greywater system. Find information about:
    • Installation
    • System examples
    • Codes and policy
    • Help with hiring a contractor
    • General FAQs
  • VIDEO: How to Install a Graywater Irrigation System - Presented by This Old House
  • Grey Water Central - Resources from Oasis Design on all aspects of grey water systems