Last watering, I tested the runoff PH as below 4.
I flushed 25gallons through the soil, which brought PH back up around 6.
I then Fed with 2.5 gallons of 1tsp/gal Floranova bloom(750ppm) PH to 8, and Runnoff came out above 6.
Today I Fed her 2.5 Gallons of 1tsp/gal Floranova bloom(750ppm) PH to 8, and Runnoff came out at ~5.5
I'm pretty sure the "Dry Koolbloom" is what caused the PH to start drifting downwards...