The City of Marion disinfects the potable water supply prior to introduction of the water into the distribution system. This disinfection is accomplished by the injection of a chlorine solution at various points in the water treatment process. The chlorine solution is produced by passing gas chlorine into a water srteam via the use of chlorinators with vaccuum regulators and injectors. The gas chlorine is stored as a gas liquified by pressure in multiple 1-ton cylinders. No more than 4 1-ton cylinders are maintained on-site at any time. Typically one or more of the stored cylinders are empty and an additional clyinder is partially empty at all times.
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