Recycle rainwater
Collecting rainwater is the simplest, cheapest way of getting a water supply. Rainwater harvesting is practiced all over the world. As water becomes scarcer, it is being promoted in many cities as a good way to recycle water, and cut down on utility bills.
To install a water harvesting system you might need permission. If you check with your local authority they might say no, so be careful.
Rainwater harvesting in Africa…