Old farts like me, find it hard to understand why some people feel the need to buy bottles of water.
I pay enough for the tasteless stuff that comes out of my tap thanks very much.
You become desensitised to how awful tap water tastes.
Many, many years ago I decided to only use bottled water for drinking and cooking.
A few years after that I left a bottle of water by the sink that had been filled with tap water to top up the car windscreen washer reservoir. Inadvertently, I used this to fill the kettle.
I was drinking my tea and thinking WTF, the cup must have been bleached? I washed the cup and tried again, same result.
Then it dawned on me, it was the chlorine in the tap water.
Unfortunately, it doesn't work the other way. If you are used to drinking tap water, you won't be able to detect the lack of chlorine and chemicals in bottled water.
I've tried them all, the best water for use in a kettle is Tesco Ashbeck Spring, it leaves no scale. Tesco Elmhurst on the other hand leaves a huge amount of scale.