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  1. Devin R. Olsen

    Automatic Hydroponic Doser DIY

  2. Devin R. Olsen

    Automatic Hydroponic Doser DIY

  3. Devin R. Olsen

    Automatic Hydroponic Doser DIY

  4. Devin R. Olsen

    Automatic Hydroponic Doser DIY

    (part two - step by step video)
  5. Devin R. Olsen

    Building a smarter reservoir

    Hope this helps someone out there.. Enjoy!
  6. Devin R. Olsen

    Dwc question

  7. Devin R. Olsen

    Greetings and salutations all

    I'm Devin from Portland Oregon. I recently got started on a hand full of projects with my father that included glass cutting, teaching him how to use a computer, playing games and of course we had planned to learn hydroponics. Early last year in 2016 my father passed away, and of course we never...
  8. Devin R. Olsen

    Automatic Hydroponic Doser DIY

    (part one - step by step video) DRO-Matic - DIY compact automatic 10 channel hydroponic doser (DWC and Ebenflow compatible)! Automatic doses nutes to reservoir from configured regimens amounts/weeks Automatic fixes pH drift of plant water during plants feeding Automatic fills (feeds), tops off...
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