Flushing during early flower..

meerkat67

Member
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.
 

curious2garden

Well-Known Mod
Staff member
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.
You need a low osmolar solution something around 250ish PPM and flush with that. I run coco and I'm never careful enough so I just flush every 2 weeks with my tap water (250 PPM) instead of feeding. I do not starve my plants at the end of their life. If your tap water is very high or too low just mix a seedling feed solution around 200ish PPM. I hope that helps.
 

Grojak

Well-Known Member
Do you feed fertilizer every watering? If so, I would back off and water just ph’d water every 3rd feeding. If this proves to be too much you can go every other. I’ve folowed this schedule for years and it’s never let me down.

in your current situation I would water with ph’d water on your next feed followed by a light dose of fertilizer on the next feed.
 
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