Wednesday 7 November 2012

Disadvantages of a water softener

Water softeners are one form of ion exchange devices used for the improvement of water quality. They are very useful in removing iron and other heavy metals from well water. However, their most common use is in the removal of the “hardness” ions, calcium and magnesium that cause scale buildup in plumbing, staining of fixtures and the spotting of glassware in dishwashers. Soap and shampoo does not lather well in hard water and results in rougher skin and hair after showering. Hot water appliances experience a heavy buildup of deposits that reduces their effectiveness and shortens their lifespan and softeners largely eliminate those problems.

Unfortunately, the great advantages produced by softeners may be accompanied by certain problem issues. After a water softener completes its cycle, the hardness minerals removed from the water have to be purged off of the ion exchange resin in order for it to be ready for its next cycle of operation. This is done by “exchanging” them for sodium. During this back flushing procedure a small amount of sodium chloride is released into the environment where some claim it may have a negative impact. Because of this, some communities have severely regulated or even banned their use.

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