Septic and Wastewater System Types
Provider capabilities vary by location and system type. Identify your system to help route your request to the right provider.
Conventional Septic Tanks
The most common on-site system in New Zealand: a settlement tank discharging by gravity to a soil disposal field.
Read more →Secondary Wastewater Treatment Systems
A treatment stage after the septic tank, producing effluent clean enough for smaller or more sensitive disposal areas.
Read more →Aerated Wastewater Treatment Systems (AWTS)
Aerated systems inject air to drive aerobic treatment, producing high-quality effluent — while the blower runs.
Read more →Septic Pump Systems
Used wherever effluent has to be lifted, dosed or distributed under pressure rather than flowing by gravity.
Read more →Holding Tanks
A sealed tank with no outlet — everything stays in it until a tanker removes it.
Read more →Effluent Fields and Disposal Trenches
The disposal field is where treatment finishes and where most of the value of the system sits.
Read more →Dripper Irrigation Disposal Systems
Shallow pressure-compensating dripper lines distribute treated effluent evenly across a landscaped area.
Read more →Sand Filter Systems
Effluent is dosed over a graded sand or media bed where aerobic bacteria provide secondary treatment.
Read more →Commercial On-Site Wastewater Systems
Higher and more variable loads, trade waste components and consent obligations make commercial systems their own category.
Read more →