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EC and PH of Runoff still Higher than Solution even after a flush and lowering the EC
mbatistastarted grow question 4 years ago
Hi, i still having this problem even after down the concentration of solution for 1/4 that scheduling feeding table says. I have some measurements listed in the week 10. Maybe my media is buffering PH and EC because i used to recycle it over times?
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CRiSPrGrowanswered grow question 4 years ago
hey there Mbatista, measuring EC of runoff from soil medium is totally useless as you can see from your readings. You're doing everything correctly but the problem is the EC/PPM meter measures particles and their conductivity right? so there's plenty of soil particles that are minerals in the run off so you're measuring (also) that more than you're measuring actually the run off from your input. It's an interesting experiment to make, but it doesnt tell you anything about the runoff you're interested in. That's one of the disadvantages of soil ! your grow looks perfect , just a tiny bit overwatered... Hope this helps ! 🚀
amazongrowanswered grow question 4 years ago
I would guess there is something about the soil. maybe because of it's age. I would definitely make a new mix in your next grow. The best bet now is to play with the numbes and always measure when feeding/watering. good luck, pal!
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