> The Bay area has particularly nasty water Bafflingly wrong, at least for the large majority of the Bay Area. It's Sierra runoff with very low TDS, hardness,

> The Bay area has particularly nasty water Bafflingly wrong, at least for the large majority of the Bay Area. It's Sierra runoff with very low TDS, hardness, or alkalinity. Maybe your particular area has issues, but to generalize that to the bay area is objectively wrong.