Not sure if that could be causing the skin flaking, I give Gina Smart Water, it's what I drink, and she doesn't have any problems. I have a water softener, but still give her some of my water. Check with your vet and ask, it could be an allergic reaction to something.
Cheers Quad & Gina
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Assume Nothing, Question Everything, Start Thinking!
RIP Megan 3/1998-5/28/2013