You’d be surprised how hard that can be. Unless you buy imported bottled water, you’re likely getting quite unregulated well water even if you buy 25 liter cans

You’d be surprised how hard that can be. Unless you buy imported bottled water, you’re likely getting quite unregulated well water even if you buy 25 liter cans of the best brand here. Water treatment here is mere clorination and likely 90% of the population lives in places with no water supply (you just dig your own borewell).