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Using the 3-2-1 FloraSeries® mixture, approximately what TDS or EC readings should I expect?

NutrientEC (milliSiemens/cm)TDS meter (NaCl standard)
3:2:12.3-2.51350-1450
2:2:22.2-2.41300-1400
1:2:32.1-2.31250-1350