Water
Designing homes to use water efficiently, reduce costs and cope with more frequent droughts or storms.
Sanitary plumbing systems
Find out about:
- Acceptable Solution G13/AS1 Sanitary plumbing
- fixtures
- discharge and vent pipes.
Acceptable Solution G13/AS1 Sanitary plumbing
The Acceptable Solution G13/AS1 Sanitary plumbing is based on the NZ Plumbing and Drainage Regulations, which applied until the introduction of the NZ Building Code in 1991.
G13/AS1 applies to above-ground, non-pressure (i.e. gravity) flow sanitary plumbing for buildings of three storeys or less.
G13/AS1 does not cover:
- specialised sanitary fixtures or appliances, e.g. such as used in hospitals, laboratories, and factories
- ndustrial, chemical or toxic wastes that cannot legally be discharged into a sewer.
Fixtures
Wastewater fixtures are all sanitary fixtures or appliances that receive wastewater and are not soil fixtures. Wastewater fixtures include:
- wash hand basins
- showers
- baths
- sinks
- tubs.
Waste fixtures may discharge into an external gully trap or a discharge stack.
Soil fixtures collect solid and liquid excreted human waste and include:
- water closets (WC)
- urinals
- bed pan disposal units
- slop sinks
- water-flushed sanitary towel disposal units.
Soil fixtures may discharge directly into a drain or to a discharge stack.
