The best drinking water
The best public water I've had was directly from a mountain spring in Austria. It tasted bright and pure. Just the right slightly chilled temperature. It went beyond thirst quenching: I felt a natural high for hours after.
Is that what water was meant to be?
The worst water I ever drank was from a public water dispenser in Orlando, Florida. I had no choice, it was 110 degrees Fahrenheit and I was playing a sports match but forgot to bring my own water. The sludge had a brown-yellow tint and a foul bitterness that coated my tongue with an unwanted aftertaste.
I don't purchase bottled water. Not just because of microplastics, fluoride and other junk but because water, like air, light and earth, was meant to be free.
If there is a natural spring nearby, I'll fill my own bottle from there. There are maps of natural springs. I use glass bottles. Sometimes copper bottles because they keep water fresh much longer and are anti-bacterial. But not too often because copper can chip off, which is not an ideal thing to swallow.
At home I get my water from the faucet, through a water-filter. It's mountain-water but unfortunately the government puts all this junk into it and the filter sorts it out. I use Berkey-filters of which many people say they are bad. But I don't care "what people say", I go by experience.
The best water in this list (image 1) is all bottled with glass. I don't recommend distilled water, it's void of minerals. While I don't think the list-toppers are that great, I generally agree with the poster.
Water is naturally healing and there are ways to make it even more hydrating. Add some lemon, mint or salt. I grow mint-plants at home and pinch off leaves for the water, keeping my mind in mint condition. Sometimes electrolyte powder is used, but natural electrolytes always beat artificial ones. It's an effective post-sports headache cure.
Some drinks are even more hydrating. The winner among them, not included on the list below (image 2), is raw milk, which is illegal in most places (imagine how debased you have to be to criminalize the most healthy drink). See image 4. Coconut milk, also absent from the list, is also awesome.
I recommend staying away from carbonated ("sparkling") water, unless it's naturally carbonated. Naturally sparkling water has much more minerals and tastes smoother than the lab-made version (with all their "science" they still don't come remotely close to replicating nature).
I've experimented with a water vortexer, a magnesium rod in my bottle, shungite stones in the bottle and tensor rings around it. The differences these things made on test subjects (friends, family) are not strong enough for me to recommend them (but I do love my shungite shower head!). But I very much recommend natural springs, natural electrolytes and home water filters.
Nor do I believe one "should" drink 4 liters of water a day to "stay hydrated" as some doctors have said. Drink when you're thirsty, don't drink when you're not. Simple.
Your body knows how much hydration is needed and signals it.