I’m starting to notice signs of nute burn/salt build up. Did a slurry and it’s 6.6 and my inflow EC is 1.4 and my run off EC is 3.2 not good. My question is, how do I go about flushing these girls.. what sort of EC nutes should I flush with? They are in 18L pots so how much do I put through each to flush properly? I’m 2 weeks into flower and growing in coco, I though I was getting enough runoff but I was feeding at a way too high EC which has caused this.. is it acceptable to flush firming this stage? They have about 48days to go.