DI water is Deionized Water and is free of impurities and dissolved solids but not from bacteria.
DI water is not intended for human consumption as there are no minerals and even though deionized water is at first neutral (ph 7.0) but a small amount of CO2 from the air will dissolve in it causing pH to drop to as low as 5.6
The purpose of using resins is to remove all ions from tap water resulting in Deionized Water.
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