>>17947133 (OP)
>Clean running water
Where does this happen?
Unless you've got access to a well supplied by an aquifer or a spring in your backyard, your water is tainted in at least several different ways.
fluoride
PFAS
birth control
herbicides
random industrial pollutants
microplastics
I think I read a while back that even aquifers were getting some microplastics though.
For some reason you NEVER EVER hear about pollution anymore. It's all about global warming now. Pollution is politically inconvenient and puts the perpetrators to shame.