Independent analysis reveals benefit of water softening.
The first results of a major new study on the effects of
water softeners in the home have shown that untreated hard water can rapidly
lead to clogged showerheads, in some cases possibly as soon as a year and a
half of regular use.
After just one week of constant testing with hard water,
more than three-fourths of showerhead nozzles became clogged, according to
laboratory results. Showerheads using softened water, meanwhile, performed
nearly as well as on the day they were installed. For an average household, the
amount of testing and hardness was equivalent to fewer than 18 months of normal
use, according to the researchers.
The results are part of a larger research project being conducted
Memorial Institute, a non-profit international science and technology
enterprise. Tests were conducted using independently developed and impartial
methods. Battelle was retained in February by theWater
Quality Research Foundationto develop and run the tests.
In addition to the showerhead tests, engineers examined the
longevity of clothes washers, water heaters and dishwashers using hard water
versus softened water. Battelle is also conducting tests to determine how much
energy savings softeners can provide homeowners. The final research report is
scheduled for September 2009.
The Water Quality Association
Hard Water Can Quickly Clog Showerheads, Study Shows
June 18, 2009