NaturalFlow Tiny Homes

NaturalFlow Tiny Homes The NF600TH system is capable of treating a total daily flow volume of 640 litres to and advanced primary treatment level.

NaturalFlow Tiny Homes

Passive, power-free treatment for a wide range of properties.

Designed for tiny homes, 1-2 bedroom dwellings, cabins, rural workshops or other low flow applications. This system is sized perfectly and has a price tag to suit, coming in well under the price of a standard household system.

Employing vermicomposting in an outside unit, this will be the best upgrade from a composting toilet you’ll ever get. Using standard plumbing and fixtures, you can have the comfort of normal amenities, and the satisfaction of effective wastewater processing and disposal.

The NaturalFlow Series NF600TH Treatment System was developed to meet the needs of a Tiny Home and other low flow situations. With a goal of reducing the size and reducing the price, we have developed a system just for you. Capable of handling flows up to 640L per day, the NF600TH will service 1-2 bedroom dwellings, cabins, sleepouts and rural workshops.

The NaturalFlow Series NF600TH Treatment System, developed and manufactured in New Zealand for New Zealand conditions, is designed to quickly and efficiently turn all your wastewater into high quality irrigation water, through biological purification techniques and processes, that require no electricity or moving parts. As a result of this; maintenance and operational costs are extremely low, and reliability maximized.

  • Capable of treating a total daily flow volume of 640 litres to ‘Advanced Primary’ treatment level

  • More Compact Module – fits your space 1.2mW x 1.35mL x 1.2mH

  • Commonly used for small 1 – 2 bedroom houses and also smaller sleep-outs, baches, recreational and transportable dwellings, farm accommodation and other temporary dwellings or rural commercial sites with up to 10 day staff

  • Land Application Systems – LPED surface or subsurface, ETS bed, soakage bed, conventional trenches, mounds, sand trenches and arches (not suitable for PCDI dripline)

Treatment levelAdvanced Primary
ApplicationOff-grid, tiny homes
Light and easy to install

Made from roto-moulded plastic modules, the system is light and easily installed with lighter machinery, making it great for those sites with challenging terrain.

If your site is suitable, you can also use a gravity discharge option, removing the need for any pumps. For gravity to work, you will require a fall of at least 3m from the top of the system to the start of the disposal area; our slope calculator can help you work out what fall you have.

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Black and grey water management requirements With this system the plumbing must be separated into black and grey.

The black water drainage includes your toilets and kitchen sink, all the rest is grey water (laundry, showers, basins etc.). This improves the performance of the system by reducing the amount of liquid passing through the worm bed (they like to be damp, but they’re not into swimming). It also keeps laundry powders and other chemicals out of the worm bed, protecting them, and giving you more flexibility around which products you can use.

It can discharge via LPED or subsurface, ETS bed, soakage bed, conventional trenches, mounds, sand trenches and arches.


Specifications and product details

Please find details and specifications for download below.

NaturalFlow Brand Specifications
NaturalFlow Tiny Homes Specifications
Home Owners Guide

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Protecting the Future of Your Property and our Shared Backyard
At WaterFlow we are with you from start to finish – and beyond. Once installation has finished, we are still on hand to provide, maintenance, support and servicing.

Discover ways to maintain your systems in between servicing and how to contact our expert service technicians.


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For trade professionals, working with WaterFlow means gaining a reliable lifelong partner committed to achieving project success, and a team that values collaboration, precision, and timely execution.

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