6th March 2005 at 12:24 pm #634
As to running 2 filters so as to allow a source of reliable water during maintenance of one of them, this might seem a right solution, but it is hardly appropriate in the context where we work and where even the cost of one filter constitutes already quite a drain on the income of each household. In any case, what we aim for is to find an appropriate, affordable solution that provides a huge improvement in the quality of drinking water available to the poorest communities in Africa – not a perfect solution that is safeguarded against all possible eventualities.
Adriaan