Single Dwelling
Your wastewater treatment system and effluent disposal method will depend on the size of your house and land, council requirements, and ground conditions, usually via a subsurface dripline field.
All onsite systems start with an underground septic tank, which receives wastewater from the house. Here, raw sewage separates into settled solids, floating material, and liquid effluent—a process called primary treatment.
This passive, reliable process completes about 70% of the necessary treatment with no energy input. Fats and sludge remain in the primary tank, while the AdvanTex® treatment process uses naturally occurring bacteria for further biological wastewater treatment.
Download our residential systems flyer to see how the system works!
How to choose your product
For most single-house residential applications, the go-to system is our AX20 Package, an advanced secondary treatment system. It can go 8–12 years between pump-outs, with the patented Biotube® Pump Vault filtering solids and the high-quality pumps are lasting around 15 years. For holiday homes or small 1–2 bedroom houses, the AX15 System is also avalable.
Key highlights:
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Provides both primary and secondary treatment in one easily installed module
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A+ rating at the Water NZ OSET program for high performance and low power consumption
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Best performing system out of more than 40 tested since 2007
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4–6 times cleaner for the environment than many other council-approved systems
Product specifications
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