Gray Water System Rebate

Gray water is water from clothes washers, bathtubs, showers, and bathroom sinks. Tucson Water single-family residential customers may be eligible for a gray water harvesting rebate. Installation address must have active Tucson Water service prior to purchasing and installing the system.

Rebate Details and Requirements

Receive reimbursement for 50% of qualifying costs up to $1,000 for installing a permanent gray water irrigation system.

  • Must attend free Gray Water Rebate Workshop before installation of system.
  • Must submit a project plan with application.
  • Rebate does not cover hoses and other non-permanent fixtures, bathroom remodel materials, workshops, plants, and sales taxes.
  • Rebate application must be submitted no later than 1 year from the purchase of the materials.
  • Applicants must submit itemized receipts or invoices for materials purchased and/or for contracted services
  • Applicants must submit a W-9 Form for rebates of $600 or more. Applicants applying for rebates of $600 or more will be issued a 1099-MISC for miscellaneous income, per IRS requirements. 

Backflow Prevention

Federal and State law requires that water suppliers protect their water systems from contamination. Use of an irrigation system that is pressurized with any kind of pump must have a Reduced Pressure Assembly (RPA) for backflow prevention installed at the service address to protect the public water system from potential contamination. Call the Backflow Prevention and Reclaimed Water Section for more information at 520-791-2650.

Learn More about Backflow Prevention

Permit Requirements

A permit is not required to tap into a pre-existing gravity stub-out from the washing machine. A permit is required to modify drainage plumbing and piping from any fixture. Call the City of Tucson Planning and Development Services Department to find out if a permit is needed at 520-791-5550.

Apply for a Residential Building Permit

Sign-up for a Workshop

Watershed Management group offers online and in-person classes that qualify for the rebate. The workshop covers appropriate methods to design, operate, and maintain a gray water system. 

Find a workshop

 

Apply for Gray Water System Rebate

 

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