WATER SENSIBLE PROGRAM

Residential Rebates


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Phone: (808) 237-6877 | Email: watersensible@boardofwatersupply.com

#WaterSensible #WaterForLife #KaWaiOla #BoardOfWaterSupply #WaterConservation


We are working hard to preserve and protect our most essential resource – water! Save money and water with the Board of Water Supply Water Sensible Rebate Program!

rebate portal button

Rebate Applications Forms:

Download, print & mail/email application
Toilet Rebate Form | All Other Rebates


WaterSense-Labeled Toilet


WaterSense-Labeled Toilet

Rebate:
NOW $200


Rebate amounts cannot exceed the purchase price of the product.


WaterSense-Labeled Toilets can reduce water waste by 20–60% and save up to 13,000 gallons of water annually. Each toilet must use 1.28 gallons per flush or less, with a limit of four per household.

Eligible products* are available at:

  • The Home Depot
  • The Bathroom Store
  • Pace Supply
  • T. Oki Trading
  • Ferguson
  • Lowes
  • Hardware Hawaii
  • City Mill
  • Online (Any Retailer)

Residential Clothes Washer
residential clothes washer

Rebate:
NOW $150


Rebate amounts cannot exceed the purchase price of the product.


SPRING into SAVINGS when you purchase a water-efficient clothes washer (residential use in single family residence or multi-family unit) that qualifies for a $150 rebate.

Eligible products are available at:

  • The Home Depot
  • Lowes
  • Best Buy
  • Costco Wholesale
  • The Discount Store
  • NEX
  • Coastal Appliance Co.
  • Newtown Appliance
  • Pacific Appliance Group
  • Pacific Home and Appliance Distribution (formerly Servco)
  • Online (Any Retailer)

Weather-Based Irrigation Controller
with Soil Moisture Sensor
Weather-based irrigation controller

WBIC Rebate:
$100
Sensor Rebate:
$35


Rebate amounts cannot exceed the purchase price of the product.


AVOID OVERWATERING when you purchase an EPA WaterSense® labeled Weather-Based Irrigation Controller (WBIC). By adding a soil moisture sensor to your EPA WaterSense® labeled WBIC, an average home with an automatic irrigation system can save more than 15,000 gallons of water every year.

Eligible products are available at:

  • Pacific Pipe Co.
  • Lowes
  • The Home Depot
  • City Mill
  • The Urban Farmer Store
  • Hawaii Sprinkler and Lighting
  • Online (Any Retailer)

Residential Rain Barrel


Rebate:
$40


Rebate amounts cannot exceed the purchase price of the product.


SAVE WATER and get a $40 rebate when you buy and use a rain barrel.

Eligible products* are available at:

  • Hardware Hawaii - All locations
  • Hawaiian Style Rain Gutters
  • NEX Garden Shop
  • Sam's Club - Seasonally
  • City Mill - All locations
  • The Urban Farmer Store
  • Online (Any Retailer)

* Note: on-island availability of eligible products at these retailers may fluctuate based on seasonal demand. If the participating retailers are out of stock, please inquire with them about special orders. Online purchases of rain barrels are acceptable.


Smart Water Monitor


slow flow monitor

Rebate:
NOW $400


Rebate amounts cannot exceed the purchase price of the product.


Smart Water Monitors: Smart Water Monitors attach to your home’s water line and provide data about water usage and potential leaks. Eligible models must NOT attach to the Board of Water Supply (BWS) meter, and must be Wi-Fi enabled and connect to a mobile app so you can see your water usage and get alerts right on your phone. Some models can even shut off your water in the event of a major leak while you are not home. These models require a licensed plumber to install.

Disclaimer: Any readings or data from this device shall not be valid for purposes of seeking an adjustment to, or otherwise disputing, the BWS bill, and shall not be used to replace data from the BWS meter for the property. This device is intended only to encourage and incentivize water conservation practices.

Eligible products* are available at:

  • Online (Any Retailer)

* Note: Products purchased prior to July 1, 2023, do not qualify for the rebate. See Rebate Form Terms and Conditions for specific product eligibility requirements.



How to Redeem:

There are now three convenient ways to submit your Water Sensible rebate applications:

Online:

Submit your rebate requests and sales receipts using our new rebate application portal. You'll also be able to track the status of applications submitted through the portal.

Mail:

Fill out the form, print and mail the completed form AND the sales receipt to:

Board of Water Supply Water Sensible Rebate Program
P.O. Box 1440
Honolulu HI 96806

Email:

Fill out the form and email it AND the sales receipt to: watersensible@boardofwatersupply.com.


Honolulu Board of Water Supply logo
Honolulu Department of Environmental Services (ENV) logo

Updated: 01/01/2026

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