Thanks Prem Baboo, that was really educative. What I am looking is for fit and forget solution for rural poor, for whom we may recharge the filter may be after some x or y months. They do not know chemistry, but your inputs were very useful

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Thanks Prem Baboo, that was really educative. What I am looking is for fit and forget solution for rural poor, for whom we may recharge the filter may be after some x or y months. They do not know chemistry, but your inputs were very useful