Grow # 2: Chemdog

Heading into the home stretch - I'll probably be harvesting next week. Ironically now that the grow is almost over, the yellowing seems to have stopped, or at least slowed down significantly. I'm wondering if my water pH might have been contributing to the issues - I checked my county water report a few weeks back and was surprised they raise the pH to 8.4 to combat pipe corrosion. I've been using citric acid to lower the pH the last couple of waterings, and the leaves don't seem to be yellowing as much. Perhaps I was getting some sort of lockout??