Grey Water Treatment Systems Nz

The greywater is held briefly in the tank before being discharged to an irrigation or treatment.

Grey water treatment systems nz.

How a greywater system works. Throughout new zealand many are already enjoying the benefits of reusing grey water. By having a grey water system homeowners and business owners can convert waste into a valuable resource. All greywater diversion systems must use by law a subsurface or substrata irrigation discharge system such as drip irrigation.

Any on site wastewater treatment system must meet performance requirements for construction and operation of the building code. Save your septic system if you have one by diverting grey water from it. Greywater is water from basins baths and showers that is piped to a surge tank. In new zealand commercially manufactured grey water systems that meet the requirements for treatment and reuse of water are available.

These units are typically comprised of a plastic gully with a grating a submersible pump which automatically moves the grey water to the irrigation system. Testing by environmental science and research esr on greywater systems in new zealand found the presence of bacteria which can harm your health even in treated greywater. The average kiwi spends 7 minutes in a shower which depending on the shower head can equate to between 7 and 14 litres per minute. As an exceptional septic tank alternative naturalflow is the wastewater solution for new zealand s rural homes and businesses.

Greywater systems used for toilet flushing should have a treatment system. Blackwater systems are also available in new zealand. A grey water recycling system will filter and clean around two thirds of your water use ready for use in a dripper feed irrigation system. Greywater systems must comply with building code requirements.

Some local authorities in new zealand encourage greywater recycling but other authorities do not. If the system is designed to as nzs 1547 the requirements of the code will be met. Probably the most common form of blackwater system in new zealand is the septic tank where some of the solids are digested by anaerobic bacteria and the remaining. When the valve is open greywater flows directly to the mains sewage or septic tank.

How it works see second image for diagram step 1. Blackwater is the wastewater from the kitchen sink and toilets although blackwater systems usually treat greywater as well. If a greywater treatment system dgts is being used rather than a greywater diversion device gwdd the waste water from the kitchen can be included. Purchase ready made grey water systems for your home.

Use water twice and return it to the environment naturally.