Question

Mention any three water harvesting systems practised in India.

Answer 1

(i) The simplestrainwater harvesting technique is the check dam. It is a small barrier built across streams. They store water during the monsoons which can then be used for irrigation etc.
(ii) Another rainwater harvesting technique is the storage tank kept underground and connected to the pipe coming down from the roof. The rain water enters the tank through a filter which removes leaves and other debris. The system contains a pump which pushes or sucks the rain water back into the house which is then delivered to the garden, washing clothes etc.
(iii) Another rainwater collection system is the Garden Watersaver diverter (GWS). It is a downspout rainwater diverter which simplifies the collection of rain water. It has advantages over other rainwater collection systems in that it instals in minutes and deactivates in seconds during winter when stored water isn’t much needed.