Senseimilla
Well-Known Member
Nope... I've had bottled water range from ph 4 to 9. I rarely have it come out in the 6s. Sometimes you do with spring water with certain makers but you can't count on it. I check the pH on all water going into my plants it's the only way I can make sure to avoid nute lockout/ph issues. I've heard people say different values depending on stage but I always go with 6.5 that way if your meter is wrong by .1 or .2 either way, your plant will still be fine. In my experience anywhere between 6.3 and 6.8 and you're good.