Hey all, Just did my "final flush" for a plant that has 2 weeks left on it. So I decided to flush today and then water with nothing but straight ph'd water from now till chop. I have in 5 gal container with FFOF and perilte mixed. I just ran ~8 gals or so of PH'd water in through. For the last gallon I tested the run-off and the run-off was a 5.4 that was with a 6.8 water going in. WTF??? What's going on? I had been watering with 6.8-7.1 water while in flowering and its run-off was around those values. Why all of a sudden the drastic drop in the run-off PH. I hope I didn't fuck my plant.