Effectively conductivity is often SLIGHTLY higher in the softened water than in the feed Na+ ions are more mobile than the other ions), but it depends also in the temperature. So the best way to know if the softener works well is to measure the hardness with a colorimetric method (very fast and not expensive).

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Effectively conductivity is often SLIGHTLY higher in the softened water than in the feed Na+ ions are more mobile than the other ions), but it depends also in the temperature.

So the best way to know if the softener works well is to measure the hardness with a colorimetric method (very fast and not expensive).