How to check the quality of a water?

Sight, smell, and taste in my opinion.

It’s sensitive and evolved that way in people for ages.

Sight, smell, and taste in my opinion.

It’s sensitive and evolved that way in people for ages.

One may not be able to quantify various parameters, but a sniff and a swish can give a broad sweep perspective if one wants to proceed with swallowing that water or simply spit and find a new source.

If water doesn’t pass these first three tests, it would take a powerful thirst for someone to continue.

I know many people who refuse to drink municiply treated water without some flavoring for the taste/smell reasons. While rationally one might know the water has been checked to be safe, instinct can be at odds with rationality.