What are the best types of water to drink?

While drinking water, we mostly don't think about which type of water it is. Well, if truth to be told, different types of water have different effects, good or bad on our bodies and all these water types have different properties and benefits. Also, it would be difficult to identify any one of them as purest water as all of these water types are processed to meet the standards regulated by the government authorities. How about taking a glimpse of all these water types and know about their....