<sigh> Simple question, thanks arnesto for the only real answer, and thanks for the interest.
I have degrees in this stuff, I understand the mechanisms, was looking for recommendations for remineralization tablets or cartridges, if they exist. I haven't been able to find anything suitable thus far.
For the record, my city water (in St. Louis) is
supposedly excellent. But then, the city tells me that violent crime is under control too
whatever. STL has inordinately high levels of chloramine (~48 micromolar). At a concentration of 48 micromolar and liters per day, even a weak drug will start accumulating.
I don't like chloramine...gives rashes, has never been FDA tested, and it poisons fish and some pets. The only sane way to treat chloramine away is to do RO, followed by an activated carbon filter, followed by a deionizer. Or add lots of vitamin C to the water, which I'd rather not do long-term. Tell me why cities switch away from chlorine again? So much easier to put a bottle of drinking water in the sun for an hour to clear the chlorine.