Description

If a property does not have a connection to the local sewerage system, there are a variety of options for individual wastewater treatment systems.

All homes produce wastewater from their kitchens, bathrooms and laundries. Under the New Zealand Building Code, if a wastewater connection to the town sewerage system is provided, you must use it otherwise your home will need its own wastewater treatment system.

There are a wide variety of treatment and disposal systems available, from the traditional single-chamber septic tank to double and triple tank systems with or without stirrers, pumps and bioreactive media.

Scope

This article includes:

• Blackwater and greywater
• Code requirements
• Wastewater treatment systems
  • Primary treatment
  • Secondary treatment systems
  • Alternative treatment systems
• Disposal systems
• Greywater system
• Resources and further information