Im un coco coir 100%. I have a very high output EC around 2.3 in some girls and 1.8 in others. All this with an input EC of 0.2. I'm doing a sog on a 7L with 3 hps. Given the high number of plants, I cannot wash them one by one and I am doing an irrigation with drainage of +-10% since I have large trays and they flood very quickly. I have been watering only EC 0.2 water for 3 weeks and the problem is that not all the girls lower the output EC equally and I have also read somewhere that watering only water does not help to lower the EC so much. They say that with the EC a little higher the salt attracts the sla and goes down more. My question is: Should I lower the EC by adding water alone or with some EC or just water? Is it bad to only water only water to lower ec ? Are you missing nutrients? Im week 5 flower. Thx in advance!!!