Difference between Hard and Soft Water

When we hear the word water, most, if not all of our notions of it is a clear, tasteless, odorless and nearly colorless substance. So it is hard to imagine that water can be hard or soft. So why is it categorized as such? And what does hard water mean? Or soft water? The difference has nothing to do with how it feels, and everything to do with the mineral content. Our concern will then be which type is safer? Although both are safe for human consumption, some prefer using...
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