The drinking water demand of our earth’s population is generally fulfilled by two sources – groundwater and surface water (river, streams, waterfalls). However, rainfall is a major source of supply for above-mentioned sources. So, isn’t it a great idea to directly use the rainwater for drinking purpose? And moreover, rainwater is considered the purest form of water.

By the purest form of water, it is meant that rainwater has a low mineral composition and acidic content. But that does not mean it is safe to directly drink the rainwater. Even though its natural composition is neutral, the rainwater drops do pick up pollutants and dirt from the atmosphere, especially in the areas of high chemical industries and nuclear explosions. There are more reasons that support the need for purifying rainwater before using it as a potable water. […]