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Turbidimeter

AguaClara needs a reliable and simple method for candidate communities to monitor the turbidity of their water supply. Portable turbidimeters cost $400 or more and thus are too expensive to provide to a large number of candidate communities. This semester our goal is to design a low budget (under $20), accurate turbidimeter. These turbidimeters will be provided to candidate communities to determine the source water turbidity range and hence the type of water treatment required. The team has created a prototype consisting of a LED light covered with a secchi disk design which is lowered into a tube of turbid water. Currently the team is finding the relationship between turbidity and the distance in which the secchi disk design is indistinguishable.