How to harvest Rainwater?
The decision whether to store or recharge rainwater depends on the rainfall pattern of a particular region. For example, in places where rain falls throughout the year (bearing few dry periods), one can depend on a small domestic sized water tank for storing rain water, since the period between two spells of rain is short. On the other hand, in areas where the total annual rainfall occurs only during 1-2 months, the water collected during the monsoon has to be stored throughout the year, which require huge volumes of storage containers and as well as some treatment processes. Therefore, considering the other option viz. ground water recharge, it is more feasible to use rain water to recharge ground water aquifers so as enable us to draw water during the rest of the year rather than storing in large containers which is not always feasible.
