Hello well, I have never worried too much with the water but if you are worried about the PH then you can buy evian I think they have the PH written on the back of the label.
Q.1 THAT would be great ! I think many people here would be interested in that especially if you did like a grow journal. You decide when you want to flower.

Q.2 Foliar feed? do you mean nutrients, if so then get superthrive(general health) and Bat Guano is great for vegetative (or so they say). Flowering nutes Iguana Juice :rasta: but generally look for an N-P-K of say 5-12-14 something like that. Good Luck :smokin: