Why does the water system need to be routinely flushed?

The city’s treated water distribution system is a complex network of pipes and storage reservoirs where sediment or deposits may naturally accumulate over time. If not removed, these materials may cause water quality deterioration, taste and odor problems or discoloration of the water. Water may also stagnate in less-used parts of the distribution
system. This can result in degraded water quality.

The normal flow of water through the system will reduce some, but not all of these accumulation and stagnation problems over time, thus supplemental measures are periodically needed
to clear out the system. Systematic flushing of fire hydrants in a unidirectional fashion is an effective way to
accomplishing this needed cleaning.

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