I know that the redoubtable solar still has been widely panned on this forum as a primary source of water in a survival situation, and rightly so, based on the testimony of those few who have actually made one, but my question is - if that is not a good alternative, what IS, when there are no natural water sources such as springs, seeps, snowmelt, etc? There has been some talk of transpiration bags/containers and collecting dew, but what other alternatives are there if there is NO natural source of water where Mr. Murphy has decided to dump you?