Its not workin my end mate.........I always mixed enough for 2days when my plant was little so if i noticed burn i'd mix a weeker batch and didnt waste to much, once i was in the 11L pots i was mixin the nutes up fresh every feed witch was every other day at 1st and was takin like 1.5 - 2L to get my 10-20% runoff, once the pots had ruffly lost half there weight, then when she got big i was waterin everyday at the 2L with the 10-20% runoff , the 2L krept up to 3L in the last few weeks of flower,...........when you think your pots have lost half there weight in water mate water 1 of the plants water with like 1.5L and check your runoff if you havent got 150ml-300ml you havent got enough so add 0.5L and check again, do this till you got the right amount then water your others the same and you'll be good with that amount for a while, check again later on and you'l find they will be drinkin more as they get bigger and the amount will raise
Try and sort the vid if you can mate want to see it!!
Didnt no if you missed my post mate while you was tryin to sort the vid out lol......................Its workin my end now the youtube vid lookin good mate
If you water with a good runoff you will be good mate with no flush trust!!