Has anyone had any experience of these water purification sachets? They apear to be designed mainly for disaster relief and are available by the pallet to various charities and agencies Info c/p from adverts etc P&G Purifier of Water is a powdered mixture that removes pathogenic micro-organisms and suspended matter, rendering previously contaminated water safe to drink. P&G Purifier of Water contains a chlorine disinfectant (calcium hypochlorite) for killing bacteria and an iron salt coagulant (ferric sulfate) for removing suspended matter, protozoa, and viruses. It also contains a buffer, clay and polymer to provide good coagulation and flocculation. P&G Purifier of Water is safe for long-term use by the entire family, including infants, and is considered an effective technology by the World Health Organization(WHO). P&G Purifier of Water’s application results in water quality that meets WHO guidelines. In field and laboratory studies, P&G Purifier of Water has been proven to eliminate disease-causing microorganisms and to remove virtually all suspended material. P & G Water Purifying powder comes in a 4 gram sachet labelled in English. Each sachet treats 10 litres of water. The sachets arrive from the manufacturing facility in cartons containing 20 strips of 12 sachets each. Each carton contains a total of 240 sachets. P & G Purifier of Water requires only a few simple tools that most target beneficiaries of disaster assistance should have at their disposal: A pair of scissors or knife to open the sachet, A spoon or other implement to stir the water, A cloth fabric to filter the treated water, and Two vessels (i.e. buckets) with volume capacity of 10 litres or more – the first to be used for the treatment process and the second to be used for storing the treated water.