Specifically Wal-Mart brand; I had it test at around 8.5 several months back with a soil test kit. I used it without soil, of course. the "Sam's" brand. Obviously someone is lying about it being distilled, somewhere along the line. This is the southern PA area. The water in my city tests even higher. I got a nused meter and am going to test it with that. I'll post the results. So if you are able, test even store bought "so-called" distilled before using. Maybe a few here would test Wal-mart's 'Sam's label from areas in other States. If I remember correctly the source (for my Wally water)is out of NY. If this proves fatal. maybe some other big chain distilled water. TThey must have just poured the sewage right out of a faucet into a plastic jug.