I've seen the post, "What defines an element's taste?", but it doesn't answer my question.
I took water that is supplied by the municipality corporation and put it through a gravity based water filter. The taste of the water didn't change. It still had a raw, tap-water kind of taste.
However, if I buy one of the 20-liter cans (they charge x+y for the water+can and when you return the empty can, they return y amount of money), the water tastes softer and less tap water-ish.
A 2-liter bottle of mineral water costs x. Which is the same as the 20 liter can cost. So I'm wondering if they really purify it or whether they just add a few chemicals to it to fool people into thinking the water is purified. They might just be supplying us with ordinary tap water or borewell water.
Are there any chemicals that can change the raw taste of water? Maybe the raw taste caused by chlorine.