Mata Aboveground Treatment Appliance

The first sanitation appliance worthy of being showcased.
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Designed in Hawai'i, for Hawai'i

Mata is a compact, above-ground wastewater treatment unit designed in Hawai‘i to meet the islands’ unique geographic and environmental challenges. Installed before a cesspool, leachfield, or sewer connection, it captures and treats solids early — preventing clogs, reducing pump-outs, and keeping nutrients and contaminants out of groundwater and coastal waters.

Unlike conventional septic systems that require excavation and costly pump-outs, Mata installs quickly and adapts to almost any site — from tight residential lots to remote developments. Built for island conditions and future-ready design standards, it offers an affordable, low-impact solution that protects both your property and Hawai‘i’s ecosystems.
How It Works
Solids Bin
Technical Info
Manuals
How It works
Mata is a single-family home appliance for high-quality blackwater treatment. Unlike bulky septic tanks that settle out wastewater solids, Mata uses a compact screening process to eliminate excavation and reduce cost. Mata pairs with existing grey water disposal practices to provide complete home sanitation.
1. Blackwater flows into the Mata via the 3" inlet.
2. A screen separates solids while liquids drain to the bottom of the separator tank. An auger diverts solids to the solids bin for drying.
3. Separated liquids are pumped out via the effluent pipe to disposal.
Plumbing Diagram
Design Considerations
Position: Mata can be orientated perpendicular or parallel to house.
‍Clearance: 3’ clearance required in front of solid bins for maintenance.
‍Other: All installations should conform to local regulation. Not for use in regions prone to freezing temperatures.

Vent | 1.5” Dia.

Inlet | 3” STD Pipe, >16" above grade, Gravity fed

Overflow Drain | 1” Dia. Check valve, no shut off.

Pumped Effluent | 1” Dia. Route to disposal area.

Emergency Drain | Gate valve.

Solids Bin
Solids bin to be exchanged every 4 - 12 weeks.
Empty Bin Weight: 10lbs (4.5 KG).
Dehydrated Solids Weight: 20 lbs (9 KG).
Step 1.

Mata runs for 4 - 12 weeks.

Step 2.

Remove solids bin with aged solids.

Step 3.

Withdraw aged solids.

Step 4.

Insert new solids bag.

Step 5.

Slide fresh bin over for aging and position empty bin to receive fresh solids.

Technical Information
The Mata is currently undergoing NSF 41 equivalent testing with the University of Hawai’i. NSF 41 is the widely accepted standard for composting system permit.
Category
Detail
Loading
1 - 6 Adults, full time.
Max Flow: 90 gpd.
Max Instantaneous Flow: 5 gpm.
Dimensions
28”H, 28”W, 51”L.
Weight
125 LBs (57 kgs).
Empty Solids Bin: 10 lbs (4.5 kg).
Solids Bin + Dehydrated Solids: 20 lbs (9 kg).
Power
120 VAC,
5 Max Amps,
20 Normal Watts,
200 Heater Watts (During solid sterilization, optional direct to solar connection)
Power Whip
6' Cord provided.
Estimated Power Consumption
175 kWh/year (solar dehydration option)
500 kWh/year (electric dehydration option)
Materials
LDPE, Fiberglass, PVC
Treated Blackwater Characteristics
Designed to meet NSF 41
BOD5: 225 mg/L (80% Removal).
TSS: 160 mg/L (90% Removal).
TN: 210 mg/L (40% Removal).
FC: 2-Log Removal (5-Log with Disinfectant).
ManualsClick here to download Mata Spec Sheet!

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LINKS

ABOUT US
MATA
CONTACT
Info@WaiHome.com
COURTESY © 2025. ALL RIGHTS RESERVED.

FREQUENTLY
ASKED QUESTIONS

[    F.A.Q    ]
Will this system work with my home's plumbing?
Maintenance frequency varies based on garden needs but typically occurs on a monthly or seasonal basis.
How much does it cost to install?
The timeline varies based on the project's complexity and size. Small projects may take a few weeks, while larger ones could take a few months. During the consultation, we will provide a more accurate estimate. We will design garden based on your own needs, budget, and time constraints.
Can I install it myself?
The timeline varies based on the project's complexity and size. Small projects may take a few weeks, while larger ones could take a few months. During the consultation, we will provide a more accurate estimate. We will design garden based on your own needs, budget, and time constraints.
Do you offer maintenance services after Mata is installed?
Yes, we offer customizable maintenance packages to suit your garden's needs and budget.