Why rainwater storage system is extremely important in dry countries?

Technology is the use of science in practical life to achieve your estimated goals. It is the sum of techniques and methods for the sake of producing something innovative that can be helpful in many ways. Before ages, there were no such rainwater storage systems or appliances and all of the rainwater was wasted but now tanks are frequently used in home, industries and agriculture sector.  There are many benefits of the rainwater harvester or tanks; first of all, they are used to manipulate the environment. Secondly, rainwater is free of cost and you don’t have to pay for the use of rainwater. Therefore, it can be stored for gardening purposes. The storage of rainwater reduces water logging and perhaps reduces the construction of dams by the government. 
Different stages of rainwater harvester
The rainwater harvester consists of different gears of different stages. The basic gears used in these stages are also explained below.
•    Transportation- The initial stage of rainwater storage system comprises transferring rainwater with the help of sanitation or channels
•    Filtration- When the water is collected it is then filtered in the rainwater harvester
•    Storage- After the filtration of the rainwater, it is then stored in the tanks for the sake of reuse. In this way, the rainwater is recycled and can be used at home and even in industries anytime
Basic gears used in rainwater harvester
•    It all starts with the collection of rainwater from the rooftops, terrace, courtyards, ground, and lawns. The rooftops are made from strengthened cement and concrete because this surface unswervingly receives the rainfall
•    Coarse mesh or airfoils are used to avoid the debris so that it cannot be stuck in the passage
    Channels are made at the edges for the assemblage and transportation of rainwater in the tanks. Drainages or gutters can be semi-circular or circular and grooved sheets can also be used
    Conduits are the gears used to carry rainwater from rooftops to the rainwater harvester
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