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For residential property development, water management systems catch rainwater from roofs and hard surfaces. The water is stored in a collection tank, or pumped to a separate header tank, and can be drawn for a range of non-potable uses, like flushing toilets, watering gardens, washing clothes or cleaning cars.

Similarly, grey water systems recycle bath, shower, kitchen sink and washbasin water for re-use in toilet flushing or gardening.

For commercial / public buildings , which have a larger capacity for capture, collection and storage, and use more water, rainwater recycling is doubly effective. These applications include garden centres and nurseries, which can make particular use of recycled water for irrigation.