I like using calcium chloride to raise and kalk to maintain. Less precipitation that way.I was taught to bring up salt mix with 2 part and kalk for maintenance due to its effect on pH and precipitation issues since you are trying to dose up salt mix. I believe kalk is supposed to be added to RODI (freshwater) only.
Even if you didn't dump the slurry, I don't believe doing this is correct eitI her way.