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How do you remove chlorine from water?

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Quick Answer

Remove chlorine from water by using a reverse osmosis system, using activated and catalytic carbon or vitamin C. UV light also removes chlorine from water.

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Full Answer

Before city water treatment plants began using chloramine to sanitize water supplies, leaving water out and uncovered was a good way to allow the chlorine to evaporate. However, with chloramine, that is no longer an option. Other methods work well at removing chlorine and chloramine from water.

Reverse osmosis (RO) leaves water with very few dissolved solids, and large RO systems work well for cleaning drinking water. RO systems also remove fluoride, but water must be pre-filtered for these systems to work properly and effectively.

Activated carbon is the substance found in water-filtering pitchers. Although they remove chlorine and chloramine, they do not remove all of these additives. The longer the water comes into contact with a carbon filter, the more chlorine the filter removes.

Although removing chlorine using vitamin C is a relatively new method, it works well and adds no new minerals to water. However, completely removing chlorine with this method takes at least four minutes.

UV light not only removes chlorine, but kills microbes as well. Its primary use is in the pre-filter application on RO systems. By pre-filtering the water with UV light, the RO system runs smoothly.

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