On the subject of filters, what do people think of hand-held filter systems such as the lifestraw?
The article quotes a spokesman from WaterAid as being very sceptical, due to the high cost. Is there not also a risk that it might increase water-borne infections such as bilharzia? On the other hand is it possible that donors are happier to see their money spent on what should be a permanent device (as opposed to a consumable such as chlorine), this increase in donations increasing the lifestaw’s potential?
Also, Alison would it be possible please to describe the multi filtration system used to treat the water at Emem?