You probably know this, but if it’s a water softener, hopefully it’s adding back minerals. Otherwise I think it’s bad for blood pressure to drink water that’s been softened. I should use chatGPT to confirm but I’m almost positive you already knew this.
Discussion
Soften water has a little extra sodium in it but not enough to be worried about. If you are, you can use potassium chloride instead of sodium chloride to soften the water.