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Playing with Cow Poo – Bio Digester Routines Part 4

Tom Kendall from the Permaculture Research Institute Sunshine Coast describes the process after the cow manure goes through the biodigester. The biodigester compost pits and reed bed are shown and how he generates soil fertility through the cycling process is discussed.

Part One of Bio Digester Routines is here

Part Two of Bio Digester Routines is here

Part Three of Bio Digester Routines is here

Tom Kendall

Tom Kendall is a permaculture farmer with a lifelong broad acre agricultural background. He is co-founder of the PRI Sunshine Coast Inc and PRI Luganville, Vanuatu and runs PDC and Practical Life Skills training courses on his Permaculture Demonstration Site “Maungaraeeda”. He is part of the Permaculture Sustainable Consulting team and does regular personal consultations. He has extensive experience in tropical, sub tropical and dry land climates and has the ability to read large scale as well as smaller scale landscapes. With his farming background, Tom is a very hands on and practical man and is solution focused. He has extensive travel experience, integrates easily with local cultures and people and enjoys studying landscapes, buildings and the effects of climate on structures, flora and fauna.


  1. Thanks for the video. Really interesting system, and I love how much easier things are to understand via video vs print/pictures. Keep up the great work!
    PRI Sunshine Coast should do a farm tour video. I would love to see other parts of the farm!

  2. Thanks for this video, i like to ask what is the distance between the bio Digester and kitchen also if we can us outlet directly for trees

    1. The biodigester is about 100 meters from the main kitchen and the gas flows quite well.
      We used 3/4 pipe to ensure less restriction of the gas flow.
      I dont recommend to apply the slurry from the digester directly to plants because the nitrogen content is still to high and could cause nitrate issues. therefor we put the slurry through a compost process first.
      I hope this helps.

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