Acidic bottled water?

I've tested a few different bottled waters... poland spring, deer park, and generic "spring" waters. I used an aquarium ph test kit. The "spring" water comes up very low on the ph scale somewhere between 4 and 6. My tap water comes up either basic or slightly alkaline. Since I started having... show more I've tested a few different bottled waters... poland spring, deer park, and generic "spring" waters. I used an aquarium ph test kit. The "spring" water comes up very low on the ph scale somewhere between 4 and 6. My tap water comes up either basic or slightly alkaline. Since I started having heartburn and reflux, I figured it might be from the acidity of all the bottled I was drinking so I switched back to tap. I know that a slightly alkaline system is more desirable and most disease and cancers can't exist in an alkaline environment.

Does anyone know if acidic drinking water alters your body chemistry and if it is worse for you to drink alkaline tap or acidic bottled water.
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