Quote Originally Posted by kdspecial
Does the PhUp/Down just disappear and disolve in the water? should I even bother to set the Ph of my water a day ahead of using it,or before i leave it to sit for a few days?
The reaction between the pH up/down and the acids may not be instant... especially since you're using organics... I'd pH it and then use it right away. One thing you don't want is to let mixed ferts sit in just water where they can interact chemically.
Another reason that I am careful to start with SOIL at the right pH so it's not such a delicate operation. It's all about the humic acids, baby!

Oh yeah and what bluebear said, let the water sit and equilibrate with the atmosphere BEFORE adding ferts.