Question

How many litres of rainwater can be harvested from a 100 sq metre rooftop area​

Answer 1

Answer:

1,000 litres

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Answer 2

If we said a standard house has a roof area of 100m2 and is situated in an area of low rainfall (600mm per year) we can estimate how much water can be collected from the roof in one year with a simple calculation: 100 (m2) x 600 = 60000 litres of water.

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