17th March 2013 at 2:33 pm #829
Yes, we need some new ideas on how filters can be made more accessible for low-income families. But the solutions also have to be robust and practical. For instance you need a water collection point where the water is collected, so if the filter is in the ground, the collection point also must be in the ground, but it’s doable I guess. One advantage of the concrete filter is that it is inside the household where people use the water. Now if you can come up with a design for a collapsible filter that can be put up in the house, and which can be sold for $10-15 in the bush (after shipping, transport etc is factored in) then we might be onto something.