BRANZ. Welcome to BRANZ



  BU485 Domestic on-site wastewater systems

BU485.jpgWastewater describes the used water from household activities. This includes blackwater from waste disposal units, toilets and urinals, and greywater, which is all other kitchen, bathroom and laundry wastewater.

This bulletin discusses options available for domestic on-site wastewater treatment systems.

The bulletin covers:

  • statutory requirements
  • first-stage treatment, including septic tanks, aerated water treatment systems, advanced sewage treatment systems, location of wastewater system tanks
  • second-stage treatment (land application), including disposal systems, factors affecting land-application systems and controlled distribution
  • sand/media filter systems
  • recirculating filter systems
  • maintenance
  • problems.

Publication date: June 2007 Keywords: plumbing, septic tank