Smarter Water Solutions for Hawai'i

Mana Wai Solutions is a Hawaiʻi-based water technology distributor, manufacturer's representative, and systems integrator specializing in water conservation, gray water recycling, and atmospheric water generation solutions.

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Graywater recycling products - Use Water Twice

H300

Compact water recycling for apartments and smaller homes.

H600

High-capacity water recycling for modern family homes.

Cascade

Scalable water recycling for commercial and multi-unit developments.

Hydraloop Certifications

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    NSF/ANSI 350R

    Water safety & hygiene

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    PIA

    EN 16941-2 Attestation

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    KIWA

    Quality Assurance

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    IAPMO

    Uniform Plumbing Codes

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    Belgaqua

    EN 1717 Compliance

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    CE

    European Conformity

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    FCC

    U.S. electronic regulations

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    QPS

    UL979 for Canada and U.S

DEHOUST GWtec® 140


GWtec® graywater station 240A


GWtec® greywater station 240B


GWtec® graywater station 340A


GWtec® graywater station 340B

GWtec® graywater station 440A


GWtec® graywater station 440B


GWtec® graywater station 540B


GWtec® graywater station 640


The Dehoust GOtec® is an all-in-one wastewater treatment system originally designed for golf course maintenance facilities, now fully adaptable for demanding industrial environments. It recycles wash water from turf care machinery, fleet vehicles, and industrial equipment. This modular system uses mechanical, biological, and physico-chemical processes to meet strict environmental regulations while cutting water costs.

DEHOUST GOtec® 130

DEHOUST GOtec® 265

DEHOUST GOtec® 525

DEHOUST GOtec® 1320

DEHOUST GOtec® 2640

Dehoust Certifications

NSF/ANSI 350 Class C, Type Laundry & Bathing

Certified across the full GWtec® series from model 140 to 640, up to 7,926 gal/day (30,000 L/day). Class C is the class for multifamily and commercial buildings. Type Laundry & Bathing covers graywater from showers, bathtubs, lavatory sinks and laundry machines.

Laundry is a key point on both ends of the process. In hotels, multifamily buildings, campuses and commercial laundries, laundry water is one of the largest and most consistent graywater sources. And where local code allows, the treated water can go right back into laundry use.

Under NSF/ANSI 350 the treated water is suitable for toilet and urinal flushing as well as surface irrigation. NSF/ANSI 350 is the benchmark recognized under both the IPC and the UPC. That means a clearer, more predictable path to approval with the authority having jurisdiction. https://listings.nsf.org/share-link?seq=MTY4MjQ2

UL 979 approval (cULus Listed)

Tested for electrical and fire safety of water treatment equipment, valid in the U.S. and Canada. For the electrical inspector, this means a listed product, no field evaluation, and no surprises at final sign-off.

FCC Part 15

Every GWtec connects to DehoustConnect for live, continuous monitoring of water quality and system status. FCC compliance confirms that this connected technology is cleared for operation in the U.S. For Canada, GWtec also meets ICES-003.

Reduce Fresh Water Use by Up to 45% Every Day

Hawaii Relies on Groundwater

About 99% of Hawaii's domestic water comes from underground aquifers. The remaining 1% comes from surface water.

Declining Rainfall Across the Islands

Over the last 30 years, total rainfall in Hawaii has decreased by roughly 18%, elevating concerns about freshwater security.

Simple, Smart, Sustainable

Water flows in from the parts of your home that produce it. It flows back out to the parts that need it. That's it.

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Collect

Capture water from everyday household activities.

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Clean

Treat and purify water through an advanced recycling process.

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Reuse

Put water back to work where it's needed most.

Save Money by Reducing Your Sewer Output

Recycling water helps lower your sewer discharge, reducing wastewater costs while conserving valuable freshwater resources. It's a smart, sustainable investment that delivers long-term savings for homeowners, businesses, and communities.

WaterCube Technology, Clean Water, Made from Air.

WaterCube 10®

Water, anywhere you go.

WaterCube 100®

Pure water, every day at home.

WaterCube 1000®

Water at scale. Anywhere.

WaterCube 3000®

More than a water source.

WaterCube Plant

Built for the demand for your operation.

See some WaterCube Success Stories

Let's Discuss Your Needs

If you're planning a project, reach out to explore smarter, more sustainable water solutions today.