Yes, you've got it right. My tap water comes out at 8,5 from the spring in my kitchen. And when I add nutrients and such to it, it ranges about 7, but usually when I measure the run off, it comes out at 5,5 - 6,0. And I do this every second week or so. It has been like this since the early stages of veg stage. And I believe it's my fault actually. Because when I planted the seed, she was living in a small 1 liter (4 cups) pot, but after a few weeks she had this boom in root development, and because of some work stuff etc. experienced a situation where I either had to let her stay in the small pot for 3-4 days, even tho the roots were poking out underneath the pot. Or use the large 15 liters (4 gallon) pot I had standing here. And I didn't have time to buy a medium sized one, and the weekend was coming. Everything was kind of a "last resort", kind of a deal.
And because of that I believe something might have happened in the lower parts of the pot. Maybe it didn't dry up enough or something. Even tho I exercised great caution when watering her, only giving her the smallest amount of water every time. (To make sure I didn't provoke root rot or something like that).
But after a while I noticed some disturbances. And after some research and some careful handling of the plant, plus thrown a few questions at you guys. I decided to flush her, and hopefully clean out some salts or other bad stuff. She had a great recovery, and have been growing superbly since then. And every second week or so, I've been measuring the run off, just in case. And since that time she has been low on the pH-scale. So I've constantly kept an eye on her, and I've been ready to act if something were to develop. But nothing ever did. She's been healthy, good looking and over all a pretty plant. So I've not done anything about it. I bought a bag of dolomite, but ended up not using it after all, since it's a supplement for adding in to the soil, not to mix with the feeding water like I wanted to try.
So basically what I'm saying here is; that the tap water comes out at 8,5. But after I've added nutrients and stuff to it, it comes out at 7. And after a two weeks (2-3 feedings) the run off comes out at 5,5 - 6,0. Which I don't approve of.
So it's not such a big "swing". I was just unclear on the exact numbers.
And I've read most of the guides relevant to my project and my experience doing this project. Including the one you referred to right there. And that is why I've not "over reacted" about the pH values. Because in nature, nothing is totally accurate. Plus, if you grow in super soil you're never supposed to adjust the pH, since the soil will do that for you. I know this is not super soil, but someone told me to be a little careful not so mess up the natural balance in this organic soil mix. Because that usually makes things 100 times worse. So what I've done is regulate in the way I can, without messing with mother nature.
And I have some further information, which I acquired yesterday, and some of it today. Because yesterday I took away the ScrOG net, so that I could turn the plant around and really get a good look. And what I noticed was that the only leaves affected by the brown/orange dots, where the 3 I've already cut off. Non of the others have those. So they might have come from physical damage, cause by me. I don't have delicate hands. Mine a made for working with rocks and wood. Not trimming flowers. So they tend to get in my way when I try to cut away some of the leaves now and then. And sometimes I poke a stem, or scratch a leaf. Or it might have come from over feeding. Because today when I was getting ready to feed her, I noticed some burnt tips. Just 2 of them, but enough for me to realize that I had to make this mixture weaker than the last one.
So what I did was mixing 3 liters (12 cups) of water with; 3ml/L BioBloom, 1ml/L BioGrow, 1ml/L TopMax and 1 teaspoon of Molasses. But before I have her the "food", I gave her 6 liters (1,5 gallon) of pure water. And I took my time. Guess I spent 2 hours total, just giving her 1-2 liters at a time. And after I gave her the feeding water I did a measurement of the run off. And it came out at 6,0 - 6,5, which is good.
So now I'll be watching her carefully for the next week or so. She has some "symptoms" with the resemblance with those affected by this "mosaic virus". I mentioned it a few weeks ago. But then again, the symptoms might come from the pH. There's nothing to it. It's just some of the leaves. They look like they are in "50 shades of green". And according to the guide this might affect the yield, but if it is this "mosaic virus" there's nothing anyone can do about it. It's not toxic, and it won't harm anyone. It just might affect the yield.
Anyway. There's not much I can do at the moment. I'll just have to give her time. But the silver lining her is; there has been no new brown/orange spots anywhere, and the run off came out perfect.
So we're still kicking!
Thanks for the support guys. Keep the feedback coming! This is the final sprint, and this is where everything can (and will if I let it) go wrong.
Peace!