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Chlorine Maintenance Program Overview

The method of water treatment used by Pinellas County Utilities and the city of Clearwater will be temporarily modified during two segments of water maintenance this year. The first segment was April 3-24, 2017. The second phase was slated to take place Sept. 5-25, 2017, but it was delayed due to Hurricane Irma. The second phase of the water maintenance program began Monday, Oct. 9 to Friday, Nov. 3, 2017. 

This maintenance requires changing the drinking water disinfectant from chloramines to free chlorine to ensure the drinking water provided to our customers continues to be of the highest quality. The annual chlorine maintenance process continues to run smoothly every year with increased cooperation and commitment from our customers. Thank you in advance for your patience.


Special care for dialysis patients and aquatic life

Chloramines have been used safely in the United States and Canada for many years. For most normal uses of potable water, chloraminated water is the same as chlorinated water. There are two groups of people, however, who need to take special care with chloraminated water: kidney dialysis patients and fish owners.

Chloramines must be removed from the water used in the kidney dialysis process and from water that is used in fish tanks and ponds.

Kidney Dialysis

Kidney dialysis patients can safely drink, cook, and bathe in chloraminated water. However, chloramines must be removed from the water used in kidney dialysis machines. Dialysis systems will require some modifications to remove the chloramines. Check with your physician to be certain the necessary changes are made. All medical facilities that perform kidney dialysis have been notified of this change to chloraminated water treatment. According to the ESRD [End Stage Renal Disease] federal regulations, these facilities are responsible for purifying the water that enters the dialysis machines.

Aquatic Life

Chloramines are toxic to saltwater and freshwater fish, reptiles, turtles and amphibians, and must be removed from any water to be used for fish tanks or ponds. Chloramines in water do not dissipate (evaporate) as readily as chlorine, therefore, specific steps must be taken for their removal. Chloramines can be removed from the water by using a water conditioner specifically designed to remove chloramines or by using a granular activated carbon filter. Your pet products supplier should be able to provide any further guidance you may need on these products. Ammonia can be toxic to fish. Biological filters, natural zeolites, and pH control methods are effective in reducing the toxic effects of excess ammonia that may be present in aquarium water due to the chemical removal of chloramines.