Join R.W. Kern Center Coordinator Claire Shillington on a tour of the digestive tract of our composting toilets. See how our waterless system breaks down human waste to create compost we’re hoping to use to enrich a new planter bed on our site.

If you’re interested in learning more about how these composting systems work, we highly recommend checking out the Clivus Multrum website.


  1. Comment by Daisy

    Daisy Reply December 28, 2020 at 8:00 pm

    This is literally best out of waste.

  2. Comment by Darryl

    Darryl Reply October 9, 2021 at 5:39 pm

    What happens to the negative air pressure in the system? Is it pumped outside?

    Are the liquids treated when they go into the other system?

    • Comment by Sara Draper

      Sara Draper Reply November 5, 2021 at 5:51 pm

      The air from the composters is exhausted through the roof. The liquids (leachate) are sent to the municipal waste treatment plant, like septic waste. We hope to one day be able to treat this ourselves for use as fertilizer!

  3. Comment by Jonah Williams

    Jonah Williams Reply May 21, 2022 at 1:25 pm

    Just watched your Build Show presentation…AWESOME!!! Great work. What was the brand name/manufacturer that you’re using for the blackwater management of the system?

    • Comment by Sara Draper

      Sara Draper Reply July 7, 2023 at 5:31 pm

      The composting toilets and greywater system is from Clivus Multrum.

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