Small enough to fit in your shirt pocket, this field reference gives operators all the basic regulatory, theoretical, operational, inspection, and maintenance information they need for correctly treating water with granular media filters.This field guide will provide the operator with the ability to produce low turbidity water on a consistent basis and avoid operationally induced turbidity spikes that result in noncompliance with regulations. Filter operational, inspection, and maintenance techniques are provided.Includes a glossary of filter terms._x000d_
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