There are two basic methods of rainwater harvesting. · Storage of roof rainwater in tanks. · Recharge to groundwater for future consumption through, · Bore-well recharge, · Percolation pit, · Trenches, · Ring wells.
Rainwater that falls on your roof is essentially free. All it takes is a sustainable system in place to harvest it into a cistern or tank for later use. Rainwater harvesting can provide children around the world with an opportunity to experience first hand what filtering and purifying water look like at home by watching the method that their parents are using.