Water demand is increasing especially in most urban cities worldwide compared to the rural areas where the demand is less than 50% that of the urban areas. With the scale of urbanization today, it is not
How can we use the rainwater?
You have to determine its intended use. Will it be for large or intermittent usage? Different uses of rainwater will definitely entail different equipment and processes. For example, rainwater can be used as potable source of water though it requires filtration to purify the rainwater, making it safe for drinking. As such, the objective is to conserve water and to lessen the dependence on commercial water available in the process. Basically, it will not hurt any consumer since rainwater is free and you can control the amount of rainwater you want to save.
How to set up a rainwater system?
There are three major processes required in setting up the rainwater harvesting system. These are collecting, storing and distributing. There are multiple ways of collecting rainwater. If it is for intermittent use, you may need a basin, tank or drum which you can store outside just beneath the downpipe. A more sophisticated method of collecting rainwater is through a coordinated network of gutters and downpipes which will serve as the catchment area. With this network, the rainwater will be led to a central basin connected to a pump which was then connected to a tank. In between these components, filters should be affixed so that it the rainwater reaches the tank it is already clean.
For storing, it would be best to store the rainwater underground. A water pump is optional depending on how deep into ground the central basin will be. The central basin should be made of concrete yet with a relief point so that when rainwater reaches a specific level it will be released to flow freely into the soil. A valve with a filter, however, must guard the hole so that soil will not enter the central basin. As such, the type and, of course, the quality of basin, pipes and filters must be carefully considered so that you may use the rainwater harvesting system satisfactorily and for long-term.
A simple distribution network may be required in distributing the rainwater, depending on the needs of the household. The network of water pipes should lead to where water is mostly used like the kitchen, bathrooms, garage and laundry area.
In sum, rain is a vital source of free water. In order to maximize the potential of rainwater, people should realize the utility of rainwater. This is more so because we do not know when a water shortage will happen. It is best to be ready this disaster strikes by conserving the rainwater, and of course, using a rainwater harvesting system.