论文信息 - Performance of rainwater tanks at an inner city house in Carrington NSW during a drought

Performance of rainwater tanks at an inner city house in Carrington NSW during a drought

Two small rainwater tanks and a 4A rated water efficient washing machine have been installed at a typically small house in Carrington an inner city suburb of Newcastle in New South Wales. Monitoring of the performance of the dual water supply scheme (rainwater and mains water) during a drought has revealed a 43% reduction in mains water demand. Analysis based on the monitoring results predicted that the combination of the rainwater tanks and 4A rated washing machine will reduce average annual mains water demand by 62% (104 kL). The cost of rainwater supply was calculated to be $0.28/kL and the benefits of the combined water management strategy were $3.24/kL of mains water saved. The microbial and chemical quality of rainwater was observed to improve throughout the rainwater treatment train. In addition the design and installation of the dual water supply scheme is presented.

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