Why Is There Chlorine In My Water?

All natural water supplies such as lakes, rivers, and groundwater have the potential to be contaminated with bacteria. Bacteria are dangerous to consume, and therefore cities go to great lengths to ensure the water they extract from the environment is free from these harmful microorganisms. Once this water has been disinfected at the treatment plant, it must travel through hundreds of miles of old infrastructure before it reaches our homes. In order to make sure that drinking water is not contaminated between the treatment plant and your home, cities need to add a chemical that will travel with the water—the most popular choice is chlorine.

What Is Chlorine?

When used for the disinfection of water, chlorine is commonly referred to as “bleach.” Bleach slowly disinfects water, making it an ideal chemical to protect water from bacterial contamination as it travels through water distribution systems. The chlorine that is released is a powerful oxidizer that attacks the tissues of bacteria and other microorganisms, ultimately killing them.

Is Chlorine Dangerous?

It has been recognized for decades that the consumption of chlorine by humans is not desirable, and in some cases has been shown to cause negative health effects. Due to chlorine’s aggressive oxidizing nature, it slowly degrades appliances and plastics, while damaging skin, hair, and eyes. Quality Water Northwest strongly encourages you to research the effects of chlorine consumption. Although it is necessary for some water districts and municipalities to inject chlorine to maintain the safety of the water or to facilitate the removal of contaminants, you can filter the chlorine out once it reaches your home.

Removing Chlorine

Removing chlorine is simple and easy with a whole-house dechlorinator. The dechlorinator uses an adsorptive media that can easily be replaced after the media has been fully occluded with free chlorine. The dechlorinator can last anywhere from 2 years to 10 years. How long the media lasts is a function of chlorine levels and the amount of water that passes through the dechlorinator.