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According to the bureau of statistics, In 2007, 21% of all households in Australia reported that their dwelling had a rainwater tank. SA had the highest proportion of dwellings with a rainwater tank (49% total). The Australian Capital Territory and the Northern Territory had the lowest proportion of dwellings with a rainwater tank: 8% and 6% respectively. In 2007, rainwater tanks were much more prevalent outside capital cities (35%) than within capital cities (12%). In capital cities, the most commonly reported reason for installing a tank was to save water. In the rest of the state, the most common reason was that the dwelling was not connected to mains water. Overall, 42% of households with a rainwater tank reported saving water as a reason for installing a tank, and 27% reported that their household was not connected to mains water. More than 60% of households without a rainwater tank (but which had a dwelling suitable for a tank and which were home owners or purchasers) had considered installing one. Cost was the most common reason reported for not installing a rainwater tank (48% Why Rainwater tanks were installed Key Findings of the study related to the use of water tanks Use of rainwater tanks The proportion of households that reported a rainwater tank as a source of water increased to 19% in March 2007 from 17% in March 2004 and from 15% in June 1994. The most common reason reported by Australian households as to why they had installed a water tank was to save water (42%) followed by that they were not connected to mains or town water (27%). Nearly a third (30%) of households who owned their dwelling had a water tank installed, compared with only 13% of rented dwellings. A quarter of family households had a water tank installed compared with only 13% of group households. Of the 3.9 million Australian households that did not have a rainwater tank installed (and whose dwelling was suitable for a water tank and who are home owners or purchasers), 61% had considered installing one. Queensland and the Australian Capital Territory had the highest proportions (69% and 66% respectively). Of the 2.4 million households who had considered installing a water tank, the most common reason reported that prevented installing a water tank was cost (48%). No time or haven’t got around to it was the next most common reason reported (28%). 76,000 households had ordered a rainwater tank but were awaiting delivery and installation, 35,300 were from Queensland. Bureau of statistics Rainwater Tank stats is a post from: Rain Water Tanks