Water has no taste.
Water has no taste.
Even more, there is at least some evidence [1] that there is a noticeable difference between normal and heavy water where heavy water is described as slightly sweet, see for example this, admittedly not very scientific, self-experiment [1] on YouTube, drinking at 4:30 and 7:50.
[1] https://en.wikipedia.org/wiki/Heavy_water#Physical_propertie...
At least not to humans. Many animals have taste buds tuned for water.
https://www.psychologytoday.com/blog/canine-corner/201104/ho...
Edit - formatting
It doesn't explain what it means to have "taste buds tuned" for water, just that dogs will drink more after eating salty or sugary foods, which could be entirely unrelated to the actual taste at all.
Even if these taste buds functioned like what you allege, they wouldn't be tasting water, they'd be tasting chemicals (flavors and smells) dissolved in the water.