Without getting into the whole Billionaire Monetization and Agenda 21 control politics of their attempts to control the worlds water resources, whereby you are not allowed to collect rain water on your own property without being subject to heavy punitive fines, what would be the legal situation of owning a Skywater 14

http://www.islandsky.com/products/home-and-office-water-making-machine

You will need a 3-4 kW solar PV installation though, to power it. As with everything, money can solve a lot of problems when it comes to personal survival and preparation to be equipped to survive.