You grab a water dish from the outskirts of the village and sprint for the hills. And what a marvel this dish is, it seems to produce good clean water by itself, though very slowly. It turns out cats in the wild get most of the water they need from the blood of the things they murder and eat. Still, with this technology, you'll be able to bring clean drinking water (very slowly) to the world. Or at least to their cats. As a bonus, it keeps you very slightly hydrated as you stumble back to human world and find your tent, passing out in time for a good morning's rest.