Rain Water Harvesting:
Procedure to prepare a model for rain water harvesting:
1. Make a model of a house with roof little slanting towards one side.
2. Connect a tube/pipe to the down end such that the rain water that falls on roof can be collected.
3. Connect the other end of this tube to a barrel like structure which can be used as storage tank.
4. From the tank arrange a tube towards the garden along with a valve that can be closed and opened.
5. Arrange one more tube with valve into a recharge pit or percolation pit arranged at one corner.
6. Arrange a tap to the tank that can be opened to collect the water for cleaning floor, vehicles etc.
7. During rain, water from roof can be collected into tank and we can utilize it later for gardening or cleaning purposes.
8. When water is in excess it can be used to recharge underground water.
