Property Plus
Coimbatore
How do we preserve rain?
While in the countryside rain is a joyful event, in a city it is met with grumbles. Interestingly, city centres receive up to 15 per cent more rain than the suburbs because of the heat island effect — the concrete and asphalt capturing and radiating heat. So why not take steps to convert rain into a resource. The first step is to calculate the rain that falls and the number of rainy days. A rainy day or a wet day is when it rains more than 2.50 mm. This information
is available on the Indian Metrological Department website and the Indiawater.org portal.
The next step is to calculate your plot area, roof area and the monthly average rainfall. Finally make the choice of filtering rainwater from the rooftop and storing it in a sump. A sump of 6,000 litres is ideal for a 100 square metre roof area. Pick the overflow and lead it into a recharge well. Do the same with the plot runoff. A recharge well is typically three ft. in diameter and about 20 ft. deep.
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