Rainwater harvesting collects roof runoff for garden irrigation, toilet flushing, and laundry. UK average rainfall of 600-1,200mm annually can supply 30-50% of non-potable water needs.
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Pro Tip
A simple water butt connected to a downpipe is the easiest and cheapest way to start harvesting rainwater - no plumber required.
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Did You Know?
Sydney, Australia mandates rainwater tanks in all new construction. In some regions, collected rainwater supplies 40-60% of household needs.
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