"Water, water everywhere and not a drop to drink" This famous line from Samuel Coleridge's "Rime of The Ancient Mariner" actually sums up the state of our earth's water supply quite clearly. Water covers two thirds of the surface of the Earth, but 99.7% of the earth's total water supply cannot be used by humans. Fresh water is only 0.002% on earth's total water supply. Treating the wastewater and reusing it, is an active step toward's conserving the precious drop of water. 'Save water, save the world'.