Water

Rainwater collection

• reduce water costs for users on a metered water supply
• provide an emergency supply
• reduce demand on local authority water supplies
• reduce demand on stormwater disposal systems
• provide an independent supply for watering the garden in times of drought
• reduce the rate of stormwater run-off.

Where households are not on a piped mains water supply, collecting and storing rainwater may be the sole source of water. In New Zealand, approximately 10% of the population depends on roof-collected rainwater for drinking water.

Find out about:

• potable water supply
• statutory requirements
• materials
• water storage options
• maintenance
• minimising contamination of collected water.