Hi Irish
It sure worked for me on this last grow. Did it exactly as you said. Part of my routine now!
Gravity works good! ive used it allot and my friend has tested many different ways of using it. this was the best way every time with us. flush with plain water before feeding gravity. then feed .5tsp for three waterings straight 3 weeks before harvest. raise your lights if using HID. this stuff is no joke and will burn you plants very easy always feed with just gravity nothing els.
It sure worked for me on this last grow. Did it exactly as you said. Part of my routine now!