Well clean water is only the half of the issue. The moecular structure of the water is the 2nd vital part of good water.
Dr.Masaru Emoto proved scientifically that water is alive and it responds to the environment.
We humans get fixated on ideas and we try to defend anything that opposes them.
Some people hold on to the idea that distilled water is the best point blank
and they become closed-minded to anything else.
Distilled water has its pro's and cons.
My father after drinking ph water of 8.5ph (ionized water) only for a month lowered his blood pressure and went off his medication. For people that do not eat a good healthy diet a high ph water is the way to go. Unless your diet consists of alkaline foods with lots of minerals I guess it would be okay to drink structured distilled water. But a unhealthy diet is acid forming and drinking acidic water will only encourage the acidity.