NOT Hero's fountain! Fermentation fueled fountain can go for a week or more!

!: NOT Hero's fountain! Fermentation fueled fountain can go for a week or more!

Working prototype of a biologically fueled water pump that anybody can make. Principle is explained and potential users and suggested uses are identified. If it is new to you, please rate it or comment.

NOT Hero's fountain! Fermentation fueled fountain can go for a week or more!

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