Water has a taste that is usually associated with the minerals dissolved in it. Distilled water tastes odd because it has almost no minerals or anything else to be detected by our sensory apparatus. Some minerals are easy to identify, salt for instance. Others may be bitter. Acids have a sour taste. Smell and taste go together. Fruit flavors are largely detected by smell. Even when the nostrils ares blocked some aerosols get into the nasal cavity from the pharynx.
I would not say water had a flavor unless something has been added to it. But we all know that just going from one town to another, the taste of the water changes. I remember reading over fifty years ago when the Prince of Wales came to America, trained persons in his entourage took distilled water, and added just the right minerals to it to make it taste like the water he was used to at home.
