Sewage System Installation

NaturalFlow is an expert at alternative septic tank installation. Our team is composed of registered drainlayers and certified NaturalFlow installers so you can leave everything to us.


NaturalFlow is a modular system designed to suit your area’s needs. Using only light machinery, NaturalFlow can be easily installed even in steep and challenging sites. Unlike with traditional septic tank installation, our modules can be manhandled into place.

With our aim to become the preferred and most progressive wastewater system of choice, we offer installation and support services nationwide. We have a certified and dedicated team of installers who can complete the project in a day. Contact us today and discover how we make converting to sustainable sewage systems easy.

Behind NaturalFlow is a family business that cares for our clients and the environment. We offer homeowners and business owners more than 40 years of experience in the construction industry. We have a wide range of experience in plants and soil treatments, allowing us to lend our expertise in establishing the Land Application field. We also have strong national partners that translate to greater value for our clients. Get in touch with us today and we’ll send the nearest installer to you.


Find An Installer

Waterflow NZ Ltd cares for it all!

NaturalFlow has professional installers and designers throughout New Zealand. Wherever you are, we have a reliable team nearby to assist. We will facilitate the installation from the beginning to the end, starting with Certified NaturalFlow Installers to full completion Council sign off when install is complete.

Talk To Us Today

Waterflow NZ Ltd has professional Installers and Designers that cover every region of New Zealand, so where ever you are situated from the Cape to the Bluff, just call our friendly team now to find out the closest one to you.


What Others Think

“Gee I love you guys :)”

I was called this morning from Rangi to say the 6-monthly inspection is being done at 2pm today.

Your guy doing it has been held up, so he actually called to let me know.
This is never happens normally with tradie type people.

If your company ever needs someone to sell your systems up this end of the woods then give me an interview.
After my experience with all your people, I would be proud to sell it!

Kim Robson


What Others Think


“NaturalFlow system is such a basic and easy system to look after and operate. We are very pleased with it and are glad we went with the system. The grey water has certainly been great on the gardens and the black water bed once planted looks after itself. Great!”

Dennis & Marie


What Others Think

“Looks after itself”

“Back in 2008 along with our building projects we decided to go for the NaturalFlow sewage system as it didn’t require any power, on our site. We have been very impressed with the performance of this system, with very little maintenance, it basically looks after itself.
Without hesitation I would recommend the NaturalFlow system to anyone as I have had no difficulties with product or the friendly team at Waterflow NZ Ltd. 



What Others Think

“Low site impact”

Just a quick email to say a huge thank to you , ken & the team.
Stoked with the work done , the boys on the diggers did a awesome job .
Every thing was left nice & tidy , super happy !!
Xmas bonus for all !!

John Cullen