What the limits between must be water for to be potable ?

Question: I'm interesed by pH's limits..

Answers:
Water is potable with pHs between about 5 and 8.

Water at pH 5 won't do any harm to *you*, but it will be corrosive to metal pipes over long time periods.

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huh? wanna ask that question again@!?

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That question makes no sense at all.

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