Flush update:
I am disappointed, but I am going to stay with the fact. The CC has taken a PH hit on the alkaline side believe it or not. It is easier to correct acidic soil and I have experience in that area. Most of the remedies to correct alkaline soil take time. Coffee ground topping or a coffee ground tea (?) may help in the short run. Other measures require amending the soil. All suggestions welcome.
I flushed and flushed and still could not get a clear flow. I had to stop, otherwise, I would destroy the plant. The soil is very rich and that maybe the problem. Both the NL and the CC had nearly the same PH readings. First flush 8.4 and last 8.0. I PHed the flush down gradually.
My regular run-off readings have been fair the next to last one was a tad over 7 and I was not too concerned. In an above entry to this thread, I comment that I got a 1/2 oz. run off at over 8 and thought it was an error. That is not the case and it is the most recent reading. I have been Phing all feeding and watering even though GO says it is not necessary (right!).
With soil and PH issues I can get away with it--for a while, yet, it always seem to catch up with me around mid-flowering. I have always blamed my water source--tap water is hard, so, I use the less hard mountain water. Now, I realize, it is a soil issue and the interaction of the nutes/watering level etc. High alkalinity is new to me. In the future, I will try a soil less medium.
The CC has a pale green appearance in some areas and the upper growth has the typical beginnings of PH issues. Cosmetic of course, it just needs to get food to the buds. The lock out is the issue right now.
Input is welcome. And I will update on the condition after 24 hours.
Cheers.