Simpleinexpencivesolarstill
From Ice Age Farmer Wiki
There is a simple and inexpensive way purify water with a solar still made from clear plastic garbage bags.You simply inflate the bag put a bowl of unpurified water in it then seals up the open end of the inflated bag and put it in direct sunlight.Condensation will collect on the inside of the bag and run down to the bottom of the bag where it can be collected.You will need several of these to collect enough water. How about stockpiling many boxes of clear plastic bags which are very cheap you can buy them by the hundreds so you can help out your neighbours should the water pipes freeze underground like they did in Ireland not so long ago Here is a video link showing you how it's done. https://www.youtube.com/watch?v=SByWBzJ-wR0