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  1. A

    Talk about EC

    I looked again and there is a x10 I was overlooking! So today's reading was 135x10 = 1350 for seedlings. Is this OK? Also how does the EC3 reading of 1350 translate to PPM? Thank you for your help :)
  2. A

    Talk about EC

    Late comer but I just took a reading on one of these http://www.tdsmeter.com/products/ec3.html (EC-3 meter) and the reading was 146 - and when I did a reading on my tap water it was 701 ... just wondering if I'm doing this wrong, as it is really confusing for me. The 146 reading is in my aero...
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