posted 13 years ago
He didn't say how much it harvests in his video, but he said his prototype harvested 1 litre per day. At the rate we get charged for water in south australia, that means it will generate a dollar's worth of water in 1-2 years. Then you have to pump that he says. I reckon the groasis makes a lot more sense, at least it is a completely passive system.
Honestly I think it's just another one of those stupid things that expends a lot of resources to try to do something that nature can already do for free. Just plant a fricken tree, for gods sake!