We are New Zealand's onsite waste water experts
Oasis Clearwater Environmental Systems has been at the forefront of wastewater treatment systems and technology for almost 30 years. Our team of experienced engineers work constantly to develop innovative, reliable and cost effective products that have low maintenance requirements, preserve water quality and enhance your quality of life.
With offices in Auckland and Christchurch, nationwide production and delivery capability, and close working relationships with several leading international manufacturers of similar products, Oasis Clearwater is your one-stop shop for wastewater treatment products.
Typical locations where on-site domestic wastewater systems are used to service properties and dwellings in un-sewered areas include:
- Rural residential subdivisions
- Lifestyle blocks
- Coastal or lakeside holiday areas
- High country cabins/huts
Your local council will be able to advise if you need an on-site septic system or if you are able to connect to a mains sewerage system.
Oasis provides instruction manuals and will also undertake routine servicing checks. Where a treatment plant is part of your system, your District or Regional Council will require you to enter into a “service contract”. A service contract provides a minimum six monthly maintenance visit, cleaning any effluent filters and inspecting control systems. The contract will also provide a callout service for emergencies such as equipment failure or overload and will carry out a periodic check of effluent quality where required by the consent conditions. Your onsite wastewater system Loading Certificate will set out the design criteria and the limitations associated with use of the system. It includes:
- System capacity (number of persons and daily flow)
- Summary of design criteria
- The location of and use of the ‘reserve area’
- Use of water efficient fittings, fixtures, or appliances;
- Allowable variation from design flows (peak loading events)
- Consequences of changes in loading (due to varying wastewater characteristics)
- Consequences of overloading the system
- Consequences of under loading the system
- Operation, maintenance and performance monitoring
There are many different types of systems available, and the solution that is best for your property will depend on many factors including the location, soil type, how much room you have, how many people live on the property. Therefore it is best to have a site inspection from an expert to devise the best system for your property. Give us a call if you’d like to arrange an on-site inspection.
What types of systems are available?
Commonly known as a septic tank and soakage trench or bed the traditional septic tank and soakage trench systems work well for large lots (1/4 acre or more), but have limitations in clay soils or gravelly soils. A primary septic systems does not treat wastewater in any way, they simply work to reduce solids before discharging the liquid to the soakage trench.
An aerated treatment system pre-treats wastewater before discharging in a controlled manner to a land treatment area on-site. They are able to be used in less than ideal soil conditions and work to reduce harmful groundwater contamination. We can retrofit a system to improve its treatment of your wastewater before discharging to a land treatment area.
We understand that one size does not fit all. Other than our standard range of designs, we can also customise our systems to suit your requirements.
6 steps to an on-site waste water solution
Contact us, we'll visit and assess your site
We’ll investigate the most appropriate area for driplines – we’ll help you avoid running them where you may wish to use the land for other purposes.
We'll help you choose the Oasis system that's right for you
land and lifestyle.
At this point Oasis or our local distributor will check your local District Council requirements and identify if your Regional Council has any special environmental requirements for onsite systems in your area.
We'll quote on permits, Oasis system, installation & running costs
• the appropriate Oasis system unit for your site;
• drip lines and drip line field design;
• installation of the unit and drip line field;
• council permits;
• our low annual maintenance costs.
All these costs take into consideration the size of your home and the number of people that the Oasis system will
need to efficiently service.
Accepting the quote
Consents and Installations
Oasis Clearwater systems are installed by fully certified and trained Oasis Clearwater distributors. This ensures site evaluation, installation and final commissioning is completed by tradespeople who are trained in our product and understand the quality of service and care that we as a company believe in.
Once installed, you will be provided with your warranty details, service manual and introduced to your local service agent
We'll service and maintain your system
If something does go awry, we have a nationwide 24-hour back-up support service you can call on 0800 627 472