Skip to main content
After Hours Emergency 24 Hours: 03 684 3817

Septic tank system

New domestic & commercial septic tanks

Hadlee and Brunton was the first agent for Oasis Systems in New Zealand. Over that 20 years we have installed and serviced over 500 units around the South Canterbury area, from small domestic situations to large commercial applications such as Clandeboye Dairy Factory.

We provide the whole package – all you have to do is give us the nod and we’ll take all the hassle out of it.

  • Full design, drawings & council-required plans
  • Processing of resource consents & permitted activities with Environment Canterbury
  • Processing of Building Consents with the Local District Council
  • Supply & installation of the sewer unit & associated irrigation
  • As-built plans, certificates & Codes of Compliance
  • Ongoing servicing for the life of the septic tank system

RESIDENTIAL TREATMENT

Aerated Systems

Textile Advanced Systems

Residential MBR

Septic Systems

Retro-Fit

COMMERCIAL TREATMENT

Textile Advanced Systems

Bioreactor Systems

Decentralised Systems

RESIDENTIAL TREATMENT

Oasis Aerated Systems

Oasis Aerated Systems utilises settling, filtration and aerobic digestion to process the effluent. Developed in New Zealand for New Zealand conditions, the Clearwater Series quickly and efficiently turn all your household waste water into high quality irrigation water, saving your valuable water supply for more appropriate uses.

Why is the Clearwater Series Technology so effective?

The Clearwater Series 2000 system is not a septic tank! It is an aerated waste water treatment system comprising five stages of treatment. Liquid flows through the system by hydraulic disbursement.

Waste water first enters a pretreatment, settlement chamber. It then flows into a secondary settlement chamber. From here it passes via a revolutionary ZABEL A300 high performance filter, where further biological and mechanical filtration occurs, into the central aeration chamber.

In the central aeration chamber, thousands of tiny air bubbles are created by our exclusive Series 2000 fine air diffuser assembly, constantly mixing the contents and providing essential oxygen for the aerobic digestion and cleansing process.

The process continues as the water is introduced to our unique Clarifier unit prior to flowing into the pump out chamber.

The system is complete with a high quality system malfunction alarm.

OASIS 2000 CONCRETE

Rated Capacity
8 Person Domestic Situation
2,000 litres Hydraulic Flow per day

OASIS 2500 CONCRETE

Rated Capacity
10 Person Domestic Situation
2,500 litres Hydraulic Flow per daye

OASIS 3000 CONCRETE

Rated Capacity
15 Person Domestic Situation
3,000 litres Hydraulic Flow per daye

Textile Advanced (TEXASS) Systems

Oasis TEXASS Systems utilises a textile media to efficiently filter the effluent over multiple passes.

Developed in the USA and perfected in New Zealand, the Texass (Textile Advanced Sewage Solution) utilises a textile media to efficiently filter the effluent over multiple passes, finally producing a very high quality end product that is ideal for irrigating lawns, gardens and tree lots.

Advantages of the Aerated & TEXASS System

  • Home owners

  • Protects water quality & enhances owner’s quality of life
  • Saves water, money & protects our environment
  • Low operating & maintenance costsoasis-texass-illustration

  • Councils and Developers

  • Highly reliable, low maintenance systems
  • Reduced operating costs
  • Increased public health protection

  • Engineers

  • Proven design and Engineering
  • Reliable performance, reduced costs
  • Systems for domestic & commercial applications
  • Ideal for failed system renovation

  • Contractors and Installers

  • Highly reliable, low maintenance systems
  • Reduced operating costs
  • Increased public health protection

TEXASS 2000 CONCRETE

Rated Capacity
8 Person Domestic Situation
2,000 litres Hydraulic Flow per day

TEXASS 3000 CONCRETE

Rated Capacity
12 Person Domestic Situation
3,000 litres Hydraulic Flow per day

Residential Membrane Bioreactor MBR

The Oasis MBR is one of the finest Membrane Bioreactor filtration wastewater treatment systems available today. Our system converts the sewage from your residence or business into a clear, odourless liquid. The high degree of treatment is accomplished at a remarkably low operating cost per month.

Membrane Bioreactor technology has a number of inherent advantages. The principle of the operation does not require flocs to be formed to remove the solids in sedimentation and therefore the Biomass can operate at very high levels of Suspended Solids. This reduces sludge volume – allowing for smaller tank size and accordingly a smaller footprint.

Advantages of the Membrane Bioreactor

  • The Kubota Membrane is especially designed for waste water
  • Kubota is the MBR technology world leader with more than 1,500 installations worldwide
  • The Kubota system offers a long membrane life with a proven performance record
  • Simple, compact & more reliable than conventional treatment systems
  • Membrane filtering produces high-quality water, ideal for re-use

  • Home owners

  • Protects water quality & enhances owner’s quality of life
  • Saves water, money & protects our environment
  • Low operating & maintenance costs

  • Councils and Developers

  • Effluent is a high-quality water, ideal for re-use
  • High-quality treatment for sensitive areas
  • Increased public health protection
  • Highly reliable, low maintenance system
  • Reduced operating costs

  • Engineers

  • Effluent is a high-quality water, ideal for re-use
  • High-quality treatment for sensitive areas
  • Proven design & engineering
  • Reliable performance, reduced costs
  • Systems proven in commercial applications already

  • Contractors and Installers

  • Proven design & engineering
  • Low maintenance
  • Full range of spares available
  • Ongoing manufacturer backup

MBR 2500 CONCRETE

Rated Capacity
10 Person Domestic Situation
2,500 litres Hydraulic Flow per day

Septic Tank Systems

The Oasis Septic Tank & Treatment Systems are based on the tried-and-tested principle of separating solids from liquids. The point of difference for Oasis is the 3-chamber configuration of the septic tank system. This introduces a second stage of settling and allows further anaerobic breakdown to occur. Finally the versatility of the Oasis Septic Tank & Treatment Systems allows for 3 options of dosing the treated sewage to occur, via a pump and float switch, a flout or via tried-and-tested gravity feed. The Oasis Septic Tank & Treatment Systems has a treatment capacity of 4,800 litres.

Advantages of the Oasis Septic Tank System

  • Home owners

  • The simplest & least expensive system to operate
  • Protects water quality & enhances owner’s quality of life
  • Fewer working parts, low maintenance

  • Councils & developers

  • Improves effluent quality
  • Increased public health protection

  • Engineers

  • Proven design & engineering
  • Approved by local councils
  • Septic tank systems for domestic applications

RWATER Z54 DELUXE GRAVITY CONCRETE

Rated Capacity
8 Person Domestic Situation

CLEARWATER Z54 DELUXE FLOUT CONCRETE

Rated Capacity
8 Person Domestic Situation

Clearwater Z54 Deluxe Pumped Concrete

Rated Capacity
8 Person Domestic Situation

Design Tools

  • Humeceptor Applications
  • Humeceptor Design Benefits
  • Humeceptor Model Selection
  • Humeceptor Product Range

Oasis Retrofit

Oasis Retrofit Systems are designed to be fitted onto an existing septic system to make it a treatment System.

The Oasis Retrofit is a fully aerated wastewater treatment plant that includes both bio-block media and an aeration chamber. The plant available in either a concrete tank or plastic tank. The Oasis Retrofit is designed to be fitted onto an existing primary/septic, as a minimum the existing primary/septic tank must have a minimum capacity of 3,500 litres.

Advantages of the Oasis Retrofit

  • Home owners

  • Converts existing septic tank systems into treatments systems which protects our environment
  • Protects water quality & enhances owner’s quality of life
  • Saves water, money & protects our environment
  • Low operating & maintenance costs

  • Councils and Developers

  • Converts existing septic systems into treatments systems which protects our environment
  • Increased public health protection

  • Engineers

  • Proven design & engineering
  • Reliable performance
  • Systems for domestic applications
  • Ideal for septic tank system renovation

RETRO-FIT CONCRETE

Rated Capacity
8 Person Domestic Situation
1,600 litres Hydraulic Flow per day

TEXASS RETRO-FIT CONCRETE

Rated Capacity
8 Person Domestic Situation
1,600 litres Hydraulic Flow per day

COMMERCIAL TREATMENT

Textile Advanced Systems

The Oasis rPBR treatment plant is constructed in a multi-tanked, multi-chambered configurations consisting of primary buffering, flow balancing, primary influent, primary filtration, recirculation, clarification and discharge chambers. The capacities varies depending on the average weekly flow rate and average daily peak flow rate. Each system is specifically designed and priced by Oasis Clearwater.

Applications

  • Country schools
  • Marae
  • Camping grounds
  • Country cafés & restaurants

Advantages of the Commercial TEXASS rPBR Treatment Systems

  • Councils and Developers

  • Highly reliable, low maintenance systems
  • Reduced operating costs
  • Increased public health protection

  • Engineers

  • Proven design & engineering
  • Reliable performance, reduced costs
  • Systems proven in commercial applications already

  • Contractors and Installers

  • Proven design & engineering
  • Low maintenance
  • Full range of spares available
  • Ongoing manufacturer backup

PACKED BED REACTOR 10000

PACKED BED REACTOR 20000

PACKED BED REACTOR 70000

Bioreactor Systems

KUBOTA Submerged Membrane Reactor

The Oasis MBR treatment plant is constructed in a multi-tanked, multi-chambered configurations, plants are packaged to meet specific client requirements and can range from 1m³ to 50m³. Membrane Bioreactor technology filters to a high quality water – ideal for re-use, the technology is also simpler, more compact and more reliable than conventional treatment systems. The capacities varies depending on the average weekly flow rate and average daily peak flow rate. Each system is specifically designed and priced by Oasis Clearwater.

Applications

  • Country hotels & motels
  • Dairy & meat processing plants
  • Country hospitals
  • Vineyards

Advantages of the Commercial MBR Treatment Systems

  • Councils and Developers

  • Effluent is a high-quality water, ideal for re-use
  • High-quality treatment for sensitive areas
  • Increased public health protection
  • Highly reliable, low maintenance systems
  • Reduced operating costs
  • Increased public health protection

  • Engineers

  • Effluent is a high-quality water, ideal for re-use
  • High-quality treatment for sensitive areas
  • Proven design & engineering
  • Reliable performance, reduced costs
  • Systems proven in commercial applications already

  • Contractors and Installers

  • Proven design & engineering
  • Low maintenance
  • Full range of spares available
  • Ongoing manufacturer backup

KUBOTA SUBMERGED MEMBRANE BIOREACTOR 50000

Decentralised Systems

The Oasis Decentralised treatment systems are on-site or clustered wastewater systems that collect, treat and disperse wastewater from individual dwellings, businesses or rural subdivisions. The systems can be pressurised or non-pressurised and can incorporate a range of treatment processes depending on application or requirements from membrane bioreactors to textile advanced or aerated treatment systems. The capacities varies depending on the average weekly flow rate and average daily peak flow rate. Each system is specifically designed and priced by Oasis Clearwater.

Applications

  • Residential subdivisions
  • Village cafés or restaurants
  • Small townships or villages

Advantages of the Commercial Decentralised rPBR Treatment Systems

  • Councils and Developers

  • Highly reliable, low maintenance systems
  • Reduced operating costs
  • Increased public health protection

  • Engineers

  • Proven design and Engineering
  • Reliable performance, reduced costs
  • Systems proven in commercial applications already

  • Contractors and Installers

  • Proven design and Engineering
  • Low maintenance, full range of spares available
  • On going manufacturer backup

Bioreactor Systems

Kubota Submerged Membrane Reactor

The Oasis MBR treatment plant is constructed in multi-tanked, multi-chambered configurations. Plants are packaged to meet specific client requirements and can range from 1m³ to 50m³. Membrane Bioreactor technology filters to high-quality water, ideal for re-use. The technology is also simpler, more compact and more reliable than conventional treatment systems. The capacities vary depending on the average weekly flow rate and average daily peak flow rate. Each system is specifically designed and priced by Oasis Clearwater.

Applications

  • Country hotels & motels
  • Dairy & meat processing plants
  • Country hospitals
  • Vineyards

Advantages of the commercial MBR treatment systems

  • Councils & developers

  • Effluent is a high-quality water, ideal for re-use
  • High-quality treatment for sensitive areas
  • Increased public health protection
  • Highly reliable, low maintenance systems
  • Reduced operating costs
  • Increased public health protection

  • Engineers

  • Effluent is a high-quality water, ideal for re-use
  • High-quality treatment for sensitive areas
  • Proven design & engineering
  • Reliable performance, reduced costs
  • Systems proven in commercial applications already

  • Contractors & Installers

  • Proven design & engineering
  • Low maintenance
  • Full range of spares available
  • Ongoing manufacturer backup

Decentralised Systems

Oasis Decentralised Treatment Systems are on-site or clustered wastewater systems that collect, treat and disperse wastewater from individual dwellings, businesses or rural subdivisions. The systems can be pressurised or non-pressurised and can incorporate a range of treatment processes depending on application or requirements, from Membrane Bioreactors (MBR) to Textile Advanced or Aerated Treatment Systems. The capacities vary depending on the average weekly flow rate and average daily peak flow rate. Each system is specifically designed and priced by Oasis Clearwater.

Applications

  • Residential subdivisions
  • Village cafés or restaurants
  • Small townships or villages

Advantages of the Commercial Decentralised Treatment Systems

  • Councils & developers

  • Highly reliable, low maintenance systems
  • Reduced operating costs
  • Increased public health protection

  • Engineers

  • Proven design & engineering
  • Reliable performance, reduced costs
  • Systems proven in commercial applications already

  • Contractors & Installers

  • Proven design & engineering
  • Low maintenance
  • Full range of spares available
  • Ongoing manufacturer backup

RESSURISED TEXTILE ADVANCED SYSTEM

PRESSURISED SUBMERGED AERATED SYSTEM

PRESSURISED SUBMERGED MEMBRANE BIOREACTOR SYSTEM

NON-PRESSURISED TEXTILE ADVANCE SYSTEM

NON-PRESSURISED SUBMERGED AERATED SYSTEM

NON-PRESSURISED SUBMERGED MEMBRANE BIOREACTOR SYSTEM

Let's get the job done!

  • 24/7 Services
Contact Us