Hey bud, what I'd do is lower the ec to like 0.4/0.5ec and run the system long enough to lower the ec in the run off.The EC is going in at 1.9 and coming out in the run off at 2.4. I guess I've got a nutrient lockout and I am feeding too much. Do you know how I should correct it? Should I drop the EC to 1.5/1.6?
It can sometimes take a lot of nutrient to rinse a pot down so you might have to top up the system and run it again.
I'd aim to make the run off circa 1.0ec± then feed them with fresh 1.5/1.6ec.