@Tom Bombadil @WildBill neither of you pH your water, correct? I watched the buildasoil video about pH, and he said he doesn't pH as long as you have good water. This drives me nuts lol. I'm assuming he means R/O falls into good water. NLS said 6.2-7 which I like just as a ballpark. I was gonna just keep it in the same range, but I'm gonna do what he says. I'm gonna not worry about pH... kinda I will check the res at 1st. If it gets over 7 I will look at the plants if they look good I'll hold. If not I will lower pH a bit. My R/O starts at 6.1-6.2'ish, but goes up not sure how high because at 7 I normally lower it.