Is there any possibility that the Electric Conductivity of Water coming from Water Softener same as Well Water

Question

According to our Water Softener supplier, the EC of Soft water always the sme with the EC of Well Water. Is it make a sense? According to them the softener will catch Ca, Mg ion, but not effect for the EC of the water. Is make a sense?

Answer 1

The usual method is to have a zeolite that has Na+ in binding sites. When Ca++ and Mg++ come through, the sites bind them and release Na+. So there are still ions present. What does the supplier say is the conductivity of well water?