https://www.slashgear.com/spinx-robot-is-basically-a-roomba-for-your-toilet-07507299/
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https://www.slashgear.com/spinx-robot-is-basically-a-roomba-for-your-toilet-07507299/
origin - http://www.pipiscrew.com/?p=11082 spinx-robot-is-basically-a-roomba-for-your-toilet