What is the idea behind rainwater harvesting systems?
It is simply “gathering rain water in a tank” in its traditional meaning. Today, rain harvesting systems are much more efficient with the addition of a couple of elements, such as pressure vessels, pumps and filters. A typical rainwater harvesting system has the following elements: • Water catch surface: this is the main element where water is caught, the starting point of the system. • Channels: to transport water from catching surface to storage tank. • Filters: these are used to filter particles in rainwater. • Pumps and pressure vessels: to pressurise water and keep water pressurised. • Water storage tank: this is the tank where ready-to-use water is stored. • Piping system: to transport water to the points of consumption. Although rainwater generally contains less minerals because of the air pollutants that may dissolve in rainwater, harvested rainwater should be further treated if it is intended to be used as drinking water. How much can you save using rainwater harvesting system
