Crowdfunding since 2010
Undune is a documentary about an alternative place to do your “business”, the resurrection of an ancient method from the Amazons region and the battle of a few innovative people to dry up the wasteful culture of water toilets: Instead of using drinking water to flush away and destroy our manure, it can be transformed into a valuable resource - black soil or terra preta.
Funding period
5/13/14 - 7/1/14
June until October 2014
Website & Social Media
Minimum amount (Start level): €
4,300 €
Movie / Video
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Digital Download

Dennis Rätzel
Dennis Rätzel1 min Lesezeit

[English version below]

Liebe Unterstützer_innen,

wir haben die digitale Downloadversion von Undune in den letzten Wochen fertig gestellt und den Link und das Passwort an alle geschickt, die eine digitale Filmkopie, ein digitales Download-Paket, eine DVD oder eine Blu-Ray gekauft hatten. Wer von euch zu dieser Gruppe gehört und den Link nicht erhalten haben sollte, schickt uns einfach eine Email oder meldet sich auf
Liebe Grüße,

Dennis und das Undune Team

[English Version]

Dear Supporters,

in recent weeks, we completed the digital download version of Undune, and we sent the link and password to all who have purchased a digital copy of the film, a digital download package, a DVD or a Blu-Ray. Those of you who belong to this group and did not recieve the link should send us an email or contact us on .
Best regards,

Dennis and the Undune team



Dennis Rätzel
Dennis Rätzel2 min Lesezeit


Dennis Rätzel
Dennis Rätzel1 min Lesezeit

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