End-to-end solutions
End-to-end solutions
Sustainable
Sustainable
Council-approved systems
Council-approved systems
+6,000 Installations
+6,000 Installations
Power-free system
Power-free system
Odourless Solutions
Odourless Solutions

Why WaterFlow

We're the wastewater experts you can count on

With over 20 years of experience in septic system design, installation, and compliance, Waterflow is the go-to provider for residential, rural, and commercial wastewater solutions throughout New Zealand.

We combine industry-certified products with expert service to deliver septic systems that are efficient, council-compliant, and built to last.

Whether you need a simple septic tank, an advanced secondary treatment system, or help navigating local wastewater regulations, we’re here to guide you through every step — from site assessment to system approval.

At Waterflow, our reputation is built on:

  • Expert guidance tailored to your property
  • Quality-assured, council-approved systems
  • End-to-end service with local knowledge

Curious about what a septic system really costs? Read our cost breakdown to get a clear breakdown of the factors that influence pricing. and how to make the smartest investment for your property.

Our two part service

 

 

1. The treatment system Where the magic (and microbes) happen.

This is the engine room, where sewage is broken down, treated, and purified. We offer a full range of systems. From passive, power-free setups to advanced aerated options, you get the best-fit solution.

2. The land application system (LAS) Where clean water goes back to the earth.

Also known as your disposal field, this is where treated water is safely returned to the environment. It’s the biggest footprint in your setup and the part that councils care most about—especially when it comes to setbacks from boundaries, waterways, bores, flood zones, and more.

We’ve got your back, from start to flow

Get us in early, and we’ll make your wastewater journey smooth, simple, and stress-free.

Assess

Start smart.

Book your free site assessment with our team today.

Assess
Consent

Council rules? Handled.

We cut through red tape with expert reports and council support.

Consent
Install

Experts only.

Your system is installed by accredited pros who know their stuff and get it right the first time.

Install
Support

Here for the long haul.

From first call to years down the track, we offer straightforward support with zero hidden costs.

Support

Projects

We’re in 6,000+ backyards around Aotearoa New Zealand

At WaterFlow we work across the country recommending and installing smarter wastewater and sewage systems, for a cleaner New Zealand.

Whether it’s upgrading a water tank or installing a new water system, we always offer bespoke solutions designed to fit your environment and lifestyle. Take a look at our recent projects to be inspired.

Muri Lagoon, Rarotonga

Together with Government initiatives to improve the sanitary situation at Muri to date almost 100 Biolytix tanks are in operation on Rarotonga all helping to minimise the threat of lagoon contamination.

South Pacific Paradise
20 September 2024
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Soneva Jani & Soneva Fushi

The award-winning resort truly defines the essence of barefoot luxury. 33 Biolytix systems help to keep it clean and healthy.

Luxury Resort
20 September 2024
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Vunabaka, Fiji

Green technologies and designs are utilised throughout the resort including the selection of Biolytix for wastewater treatment.

Residential and Hotel Development
28 August 2024
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Passive Solar Home

Our clients came with the mission of creating their own passive solar home. The NaturalFlow system was an obvious choice, being power-free. We were able to help them achieve their dream on this awesome property.

Off-grid, tiny homes
14 December 2023
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Family Home

The EconoTreat was perfect for this family home. With higher volumes of waste and council requirements of secondary treatment, they needed a system that would provide a consistently high treatment.

Residential
14 December 2023
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Packhouse Accomodation

With large seasonal fluctuations, this kiwifruit packing facility needed capacity for peak season staff. A custom designed system by WaterFlow met the requirements for the project, with the capacity to process up to 54,000L per day.

Commercial
14 December 2023
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Otamatea Marae

Struggling to have enough water to sustain the events, we were asked to upgrade the water tanks and drainage. With an additional four 25000L tanks, they aren’t likely to run out any time soon!

Marae & Light Commercial
14 December 2023
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Rural Oasis

The Naturalflow NF8000 System was used in this piece of paradise. The landscaping gives it a tropical feel, as you step through to the pool for some quality time out.

Residential
14 December 2023
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Bahá’í – Henderson

With major upgrades to the building and facilities, the Spiritual Assembly of the Bahai’s was in need of an upgraded wastewater system.

Marae & Light Commercial
01 December 2023
Read More

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It all starts with your site

Get a free site assessment

Your land and disposal field call the shots, and we’re here to find the perfect wastewater match for your patch.

Not sure what fits your backyard? Let us take a look.

WaterFlow NZ Ltd.

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