How to harvest rainwater
Rain water harvesting is simply diverting the flow from downspouts to a barrel. Devices are available to divert water back to downspouts when the barrel is full. You can collect 27.28 liters of rainwater from 25.4mm of rain on 0.93 sq. m of surface area. For example, Scotland averages 1015mm of rain yearly. On 92.9 sq. m of roof this would average 108892.72 litres of water per year. So ... How to harvest rainwater
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Updated: 21.06.2009. 06:09