On-site Wastewater Systems

Clean, green and highly efficient

These days, rural and coastal living calls for new levels of environmental awareness. Compliance issues are ever-present, especially where wastewater is concerned.

That’s where our experience, design expertise and familiarity with territorial authority requirements benefit our clients. drains.co is fully conversant and experienced with primary and secondary wastewater installations.

Conventional anaerobic septic systems are primary wastewater systems that have stood the test of time. A septic tank system may be the most cost-effective choice for small, three-four bedroom dwellings on a suitable rural site.

We design, supply and install such systems with close reference to the Auckland Regional Council’s Technical Publication 58 (for onsite wastewater system design and management).

One of the safest and most efficient wastewater solutions is an on-site secondary treatment plant.

drains.co Ltd is the authorised South Auckland distributor for the outstanding Oasis Clearwater Series - technology that has revolutionised the disposal of wastewater in sensitive areas.

Our service includes supply and installation, including excavation if required (electrical connection is not included), and we provide a 10-year warranty for concrete and two-year warranty for electric componentry.

Here’s how the revolutionary Oasis 2000 Series system works

The Oasis 2000 Series is an aerated waste water treatment system with five stages of treatment.

1. The system comprises a pre-treatment chamber feeding to a secondary treatment chamber. Liquid flows into the aeration chamber.
2. In the aeration chamber, with the use of a fine air diffuser assembly, thousands of tiny air bubbles provide oxygen for aerobic digestion and mix the contents of the aeration chamber.
3. Waste water is introduced to the clarification chamber by hydraulic dispersment.
4. Settled sludge is transferred back to the pre-treatment chamber to further enhance treatment.
5. Further biological and mechanical filtration occurs by the use of a high performance filter, prior to final pump and discharge chamber.
   

Why we use the Oasis Clearwater system at drains.co Ltd

• Treats effluent to a level unobtainable by septic systems
• Energy and maintenance efficient
• Surpasses the effluent quality standards required by New Zealand Regional Council regulating bodies, for the re-use of wastewater
• Treats wastewater to a level of purity unattainable by conventional septic systems
• No overflow, no seepage of untreated effluent
• Ideal for cluster subdivisions
• Ideal in areas with high water tables, poor soil conditions and where environment is a risk
• Perfected for New Zealand conditions - by New Zealanders
• Meets internationally recognised performance standards
• Low maintenance
• Treated water can be used for irrigation
  

Three systems available

At drains.co, we supply, install and maintain three Oasis Clearwater treatment systems:

• Series 2000 Aerated Wastewater system
  - For up to a 10-person household
  - Copes with 2 cubic metres daily
• Texass recirculating textile system
  - For up to a 10-person household
  - Copes with 2 cubic metres daily
  - Offers additional pre-treatment features
• Membrane Bioreactor (MBR)
  - Copes with up to 50 cubic metres daily
  - One of the world’s most advanced home wastewater systems
  

For further information, click here to contact us.