Try jar test - see if particulate settles.

If it does, you have watershed erosion, wind/wave action, or fish species causing turbidity. Solution - Drain, seine, excavate, start over something special from scratch.

If it remains turbid, choose flocculant [Lime, Alum, Gypsum] and incrementally add until water clears. Record amount needed to clear, extrapolate dose needed to clear water following pump down. Will have to estimate remaining water to determine correct amount of flocculant.

Many men go fishing all of their lives without knowing that it is not fish they are after. ~ Henry David Thoreau

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