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Amber Garnett

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Cover page of a BRANZ study report titled ‘Microbial water quality of commercial and residential greywater sources’

SR420 Microbial water quality of commercial and residential greywater sources

Product Description A large proportion of residential and commercial water use could potentially be substituted with alternative water sources, such as greywater. In the Kapiti Coast area, it has been...

May 5, 2026, 1:12 PM

Cover page of a BRANZ study report titled ‘Residential water tariffs in New Zealand’

Research Report

SR413 Residential water tariffs in New Zealand

Product Description Freshwater in New Zealand is considered to be abundant by international standards, due to the plentiful rainfall experienced across the country and the comparatively low population density. Yet...

May 5, 2026, 1:01 PM

image of the front page of Calculating potential network savings through employing rainwater and greywater systems, contains stylized image of rain

Research Report

SR384 Calculating potential network savings through employing rainwater and greywater systems

Product Description Strain on New Zealand’s water networks is forecast into the future as populations continue to increase alongside rates of urbanisation and per capita water use. Compounded by climate...

May 5, 2026, 12:32 PM

Sustainability

Small-scale greywater use

A large proportion of residential and commercial water use could potentially be substituted with alternative water sources, such as greywater. This study seeks to expand on previous research by assessing...