Rainwater tanks have been used in Western Australia for many years. In parts of the country, they are the only source of drinking water. In metropolitan areas where scheme drinking water is available, they can provide a valuable alternate resource.
Urban Rainwater Collection
The Department of Health WA recommends the use of rainwater for non-potable purposes when a safer reticulated drinking water scheme is available. Rainwater collected in metropolitan areas may be subjected to an increased risk of pollution by airborne chemicals and microbiological contaminants. The Urban rainwater collection factsheet (PDF 668KB) provides a guide to identifying the potential sources of contamination and how to reduce their impact on the water that you collect.
Country Rainwater Collection
The Country rainwater collection factsheet (PDF 200KB) provides specific advice to those who are totally reliant on rainwater for all domestic needs. Regular maintenance is the key to good water quality. Installing and maintaining screens, filters and first flush devices will reduce the risk to your health.
Using Rainwater After a Bushfire
Using rainwater after a bushfire factsheet (PDF 70KB) provides information to residents where rainwater tanks may have been contaminated either directly by ash, debris or directly by fire fighting activities.
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Contact the Water Unit, Environmental Health Directorate: (08) 9388 4999.