In article , RickH wrote:

It is a common misconception that the salt actually "softens" the
water, it doesnt. Salt is merely used as a brine to clean the
filter. The number of "plastic beads" in the filter is the only
determiner of how soft the water comes out.

Actually, you're the one with the misconceptions. Salt is the source of the
sodium that's used to soften the water. Here, educate yourself:
http://home.howstuffworks.com/question99.htm

The installer should have
sized the filter tank based on the chemistry of the water as measured
with hardness test, He probably oversized to filter too much so the
water is coming out "extra" soft.

*Maybe* he oversized the unit. Much more likely, he set the softness setting
too high, and a simple adjustment will take care of the problem.

See the owners manual.