Water Softener lifetime question

hi,
i know this is all relative to the hardness of the water in the area, but i will try to provide some statistics that will help solve this 'issue'.
i have a kenmore water softener that is about 3 years old, in my home with wife and daughter, and it runs all the water with the exception of 2 outside faucets. our water is about a 9 in hardness and it is gahanna city water, or maybe its columbus ohio water. anyway, how long can i expect this softener to perform? i think it was the model that is rated between 35000 and 39000, or somewhere in that range.
the reason that i ask, is that lately it seems like our water is not as soft as when the unit was installed. is there any good advice to get the water softer again? i have turned up the hard water setting so taht it recharges more frequently.
thanks in advance,
fish
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do you have iron in your water? i owned a system once that had to be periodically flushed with "iron out". the iron plugged the resin bed and it quit softening the water. there really isn't that much to a softener---they can last for many years. best bet might be to call a softener company. some will give you free advice if you're a DIYer.
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Yup i'm a diy'er, so maybe i will go to the store and look for some stronger chemicals to flush the unit with.
thx marson

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fish wrote:

I'll guess it is Gahanna water as I don't think Columbus delivers any water hard enough to need additional softening at the home. What they get from the south well fields is softened before it is pumped.
--
Joseph Meehan

Dia duit
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