One of the more interesting bits if info on Wikipedia is that Chloramines should be removed from water before the water is used to homebrew beer.
Obviously bad stuff.
You also need to neutralize it if you’re filling a decorative pond that has fish.
Insofar reasons I got a water distiller..With water shortages public water systems are going to be playing around with what they dump in our water....plus I want the fluoride out
Most cities use chlorine, not choramines. sorry to say, my water company uses chloramines. They are about 400 times more stable than chlorine. Unlike chlorine, which you can boil off, chloramines stay.
I’m a home brewer and yes, it must be removed if you are using municipal water for brewing. A Campden tablet (potassium metabisulfate) will remove the chloramines chemically for brewing.
This makes me wonder the effect of chloramines on our intestinal flora. There are very few studies on this.