Rebates | Frequently Asked Questions | EPA WaterSense

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What is the Board of Water Supply (BWS) rebate program?

The BWS is encouraging their residential customers to expand on existing water conservation efforts by offering these rebates:

  • $75 to replace an existing regular clothes washer for a water-efficient model.
  • $40 to purchase and install a rain barrel at their home.

Who can qualify for the rebate?

To qualify for the rebate, the applicant must be:

  • A residential account holder with the Honolulu Board of Water Supply, or
  • A tenant of a multi-family account holder (apartment, residential condominium, or townhome) of the Honolulu Board of Water Supply.

Customers that don't directly pay their water bill and don't have a Board of Water Supply account, may still qualify for the rebates. If the water bill is paid through a different entity (i.e. AOAO, Condo, Rental -9*Unit or military base) please contact them to identify the account number and include it in step 1 of the rebate application.

How do I know if my purchase qualifies for a rebate?

The rebate program started as of April 30, 2018. Rebates are available for swapping out an existing regular clothes washer for a water-efficient model or for the purchase and installation of a residential rain barrel. As long as your purchase was made between May 1, 2018 and June 30, 2019, and your rebate application is postmarked within 60 days of the purchase, you may qualify for a rebate.

What types of clothes washer qualify for a rebate?

A clothes washer MUST be an ENERGY STAR® model to qualify for the rebate. Be sure to look for the ENERGY STAR® on the machine and/or paperwork before sending in your rebate application. An ENERGY STAR® clothes washer uses around 30% less water than a standard model.

energy star logo

What if I already bought a new efficient clothes washer earlier this year?

Your purchase of a new efficient clothes washer would be considered eligible if it was between May 1, 2018 and June 30, 2019, and your rebate application would be postmarked within 60 days of the purchase date.

Do I have to have my old clothes washer hauled away?

The Board of Water Supply rebate program does not include a haul away component for eligibility on the washer rebate.

Why is the BWS offering these rebates?

The BWS hopes that these rebates may motivate customers to take the extra step so they can further reduce their home water use, take control of their household costs, and conserve our precious water resources.

Where can I get products that qualify for the rebate?

Lists of retail outlets that sell eligible clothes washers and rain barrels are available on the BWS's website at

How do I get the rebate?

  • Purchase the qualifying item.
  • Submit the completed rebate form and supporting documentation in one of two ways:
    • Hard copy: Mail the completed form and the sales receipt to:
      Board of Water Supply Water Sensible Rebate Program
      P.O. Box 1440
      Honolulu HI 96806
    • Online: Email the completed form and a scanned copy of the sales receipt to:

How long do I have to submit my rebate application?

The rebate application must be turned in within 60 days of the date of purchase.

When will the rebates end?

Rebates for this program are available through June 30, 2019, or while funding lasts.

Is the BWS looking at other future rebates?

The BWS is also working on programs for its commercial water customers, involving a rain barrel rebate and incentives for pre-rinse spray nozzles and faucet aerators, that it hopes to launch later in the year.

Who can I contact if I have more questions about the rebates?

Updated: 8/3/18