I don't know what that means, but it seems a small enough difference to not effect anything. I did find some litmus paper and checked for acidity a while back and got no response. Is 7 PH acidic or alkaline? Pat.
A ph of 7 is exactly in the middle, neither acid nor alkaline. This is actually good as water is supposed to be neutral. I have heard, though I cannot say is true, that distilled water is acidic meaning that it has a ph lower than 7.