ppm drop

  1. G

    Questions about EC levels in hydro, interpreting EC rise, and native EC from tap

    So I’ve got an approx 25-30gal RDWC that houses up to 4 plants and I’ve never once seen my EC levels go down over time no matter how little I feed and what I set them at. 4 weeks into flowering and I can barely feed at 1.0 EC (500 ppm) and it will end up holding steady as water levels go down...
  2. S

    PPM Dropping from 900 to 400 over night

    Hello all I am running a 17 gal DWC reservoir, using about 9gal of water nute mix, I am using GH flora nutes with hydroguard, calimagic, and hygrozyme. I used the hygrozyme to help keep the dead roots decaying in the reservoir. (I’ve had issues with root rot, I recently put an air conditioner in...
  3. M

    PPM dropping in water tank. Any ideas?

    Hi guys, I'm currently running a gravity fed system (Autopot) linked to a 100L flexitank. I mixed up 50L of nutrient solution about 5 days ago, the ppm of the solution was between 840/980 when mixed (as shown on the Blue Lab Truncheon). I've checked it again this morning and it's now sitting...
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