From the table, to reduce the turbidity of the water by using alum + tamarind powder By way of jar test the turbidity 200 NTU ratio in 40: 60.Found in the first selected the appropriate pH pH was 6.5 and reduce turbidity residual 1.98.In 2 selected the appropriate pH pH was 6.5 and reduce turbidity residual 2.01.In 3 selected the appropriate pH pH was 6.5 can reduce the turbidity and the rest 1.88.When tested was found that the optimum reaction pH alum is the best pH was 6.5 and can reduce the turbidity of up to 1.97 by color value was 2.5 units.
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