all soil over here doc! Kit's on it's way and I'm jumping out of my skin! I have a bunch of promix that I never got to use Can incorporate that into my kit? Thanks again doc.The pH of hydroponics solution is critical.
The pH of a pot of proper soil is also critical.
However, the notion that changing the pH of the feed water will effect the pH of 7 gallons of mineralized dirt is just silly. If you grow in soil, just ignore all the pH chatter. It's not at all necessary or meaningful.
If you're in hydro, however, you'd best pay careful attention to pH.