Why chlorine taste and odor may be more noticeable in your water

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A temporary change to the chlorine in the public water supply could make the taste and odor of chlorine more noticeable for Quad Cities-area customers of Iowa American Water.

Iowa American Water changed the type of chlorine used to disinfect public water while they flush water mains as part of regular maintenance from April 27 to May 27, 2014.

“Chlorine is commonly used in public water systems as a disinfectant,” said Iowa American Water spokesperson Lisa Reisen.

They’re temporarily changing to “free chlorine,” which does not contain ammonia.

“(C)ustomers may experience a more noticeable chlorine taste or odor in their tap water during the next four weeks.  There is no reason for concern.  This is due to the switch in chlorine type only,” Reisen said.

The temporary change could also affect aquarium water, so customers with fish aquariums should note the temporary change to “free chlorine.”

Flushing is done to clear mineral deposits and sediments from water mains and fire hydrants.

Customers near a work location could experience a drop in water pressure or some discoloration in water.  If your water is discolored, Iowa American Water recommends letting cold water run until it is clear before using it again, and refrain from doing laundry if your water appears discolored.

Iowa American Water planned their annual water main flushing program to be done between 8 a.m. and 3 p.m. weekdays from April 27 to May 27.