QUANTITY
At the micro - level, our annual rainfall of 120 cm, if harvested within Chennai city, extending over an area of 174 sq. kms, is capable of yielding 125 litres per day, making us self sufficient.
At the micro-level, this amount of rainfall is capable of yielding more than 700 litres of water per day this will not only take care of the daily needs of a family with 5 members but this will also reduce their dependence on metro water
throughout the year, if harvested in one ground of plot (2400 sq. ft).


Rainfall Calculator
 
Try & calculate the advantages of Rainater Harvesting
Select your District* is average rainfall
Type of Building*
Investment for RWH setup Rs.
Roof Top Area* (Sq.m)
Number of Persons*
Actual Requirement per Day Litres
Quantity can be Collected Litres
Actual Requirement per year Litres
Number of Days the Water could be used Days
Cost of Rain water saved Rs.
[Cost of 5000 litres is Rs.500(Market Price)]

 

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