[AGA Member] Water question..

[john Glaeser <jglaeser@wisc.edu>]

Amit,

Hard, alkaline water from the tap can be pH7.2. When water is in pipes, 
it's not exposed to air and the natural air/water gas exchange does not 
occur. As a consequence, CO2 level is relatively high and Oxygen, low 
and this causes a relatively low pH.  Once harvested, tap water will 
elevate to above pH8 in a day's time. Try an experiment with a glass 
full of tap water. Our city water department guy told me this.

John

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