Research it with your mouth on your next hike, drink from a stream in the mountains--go high altitude, if you don't get altitude sickness when you arrive at bas

Research it with your mouth on your next hike, drink from a stream in the mountains--go high altitude, if you don't get altitude sickness when you arrive at base camp, it won't be enough--and drink water that anyone can see is pure. Assay it with your mouth, it will be conspicuously delicious. When you return, taste the tap, it will not be anything like it. Then if you brush your teeth, you will realize that that is what it tastes like: city water tastes like toothpaste, because that's the intention, to make water good for your teeth, with the same chemical that makes toothpaste good for your teeth. It's toothpaste's signature flavor. The flavor you were told not to object to in childhood when you brushed, guess what, your senses know what it is, sodium flouride wasn't discovered in a lab, many places have it in their groundwater. It's gross because it's supposed to be gross, you aren't supposed to drink that water if you have a better choice.