75% of earth’s area is covered by water. Water is the major component of all living beings and it is the
major constituent of human cells. Ayurveda considers water (aap or jala) as one of panchamahabhutas. ( Panchamahabhutas constitute human body). Water provides a good medium for most of the biological processes that happen in living beings. Dehydration or loss of water from body causes dry skin, lowered energy, muscle cramps, reduced alertness and affects vital organs.
Water which is not harmful to health and has all qualities to serve as drinking water is called as potable water. The potable water must be free from heavy metals, suspended particles and pathogens like bacteria.
Ayurveda recommends rain water which is devoid of impurities, microbes as pure potable water. This is called as “Gangambu”. Such rain water is healthy, refreshing, cools body, increases alertness and satiates taste buds. The properties of pure Gangabu or rain water are narrated as follows.