Water need filtration to be potable. Unless and until its not been through filtarion system its certainly not ready for human consumption.
The Pressure Sand Filter consists of a multiple layer of sand, pebbles and gravels with a variety in size and specific gravity. These Filters are designed to remove turbidity and suspended particles present in the feed water with minimum pressure drop. These Filters are custom designed to suit the process requirement.
Activated Carbon Filter: It is used for effective removal of color, odor, organic contamination and Chlorine in water. The activated carbon also removes certain chemicals that are dissolved in water passing through a filter containing GAC by trapping the chemical in the GAC. Carbon filter have back flushing arrangement, which very easily flushes away the deposited impurity at carbon granules. Thus the reverse flow of water flushes away the impurities deposited at carbon granules.