wondering if these nutes are veganic? I was told by a person that veganic nutrients are all plant soluble therefore don't need to be pH'd because the plant can easily uptake it (granted pH isn't too bad, then i wouldn't use that water)
look up Kyle Kushman, he's the professor from oaksterdam that recently won the cup with girl scout cookie, grown veganically. I'm pretty sure you don't want to use ph up or down because the point of it is to not introduce chemicals like that (even though it may or may not matter, i dont have info on that part)