Did you know!!!
Based on the design of a typical dwelling, the average suburban household has the ability to collect at least half its annual water consumption through rainwater harvesting.
Every milliliter of rain that falls on a square meter of roof will produce a litre of water. So on an average roof of say 250 square meters, you have the potential to harvest 2500 litres from a rainfall of 10mm.
To work out how much you can harvest, work out the area of your roof and find out your average rainfall for your local area. The math is simple.