Rain Water Harvesting
Rain Water Harvesting as a method of utilizing rain water for domestic and agricultural use is already widely used throughout the world. It is a method which has been used since ancient times and is increasingly being accepted as a practical method of providing potable water in development projects throughout the world. Rainwater is one of the purest sources of water available. Its quality almost always exceeds that of ground or surface water. It does not come into contact with soil or rocks where it can dissolve minerals and salts nor does it come into contact with many of the pollutants that are often discharged into local surface waters or contaminate ground water supplies. The global water system should be considered as a total loss system and the water should be kept “in play” for as long as possible, retaining it for later use and reuse wherever possible. The rainwater tank should never be allowed to empty as this would have a detrimental effect on the beneficial bacteria that have established themselves in the tank, keeping the water clean.