not 100% sure what you mean, but when I flush; I empty the 180l tank, fill it with 5.8'ph water with an EC of 650 (from tap), and then water 15-20 times a day, 15 minutes intervals; after 2-4 days the leaves start yellowing as it draws out remainder from leaves; I then leave for another 2-3 days and harvest time is on.....
