posted on Nov, 14 2007 @ 03:05 AM
Given certain precautions you can store water for a very considerable time - and even longer when you consider your options for treating it when you
actually go to use it.
For storing large amounts for long periods the material that the container used is very important - silly example, would you drink water after its
been sealed in Lead for a year? An obvious choice is plastics - but it is still not that simple. Not all plastics are impervious to chemicals from
other plastic containers 'leaching' through.
Two other considerations for the container would be the condition of the water that you put in in the first place - and how much the container would
facilitate the micro life that would be present. Really that would boil down to what temperature you could maintain the water (the cooler the better
- frozen solid would be perfect, but imposable in Florida with no constant electricity!) and the amount of sunlight (or other light) that can reach
the water. Another point on light would be to consider the effect it could have on the long term durability of your container - UV is epically bad
for certain plastics.
And finally you should remember that every time you interfere with your water store you would take away from the cleanliness of it - you introduce
light or heat that will assist micro life, possibly introduce other contaminates. You may want to consider storing more than one supply - but in
smaller quantities, like not putting all your eggs in one basket. A near perfect solution could be 3-4 litres canned and treated to the same UHT as
super long life milk - then you only open each can as need be. I imagine with the right tinning material that would last decades - but could not be
frozen due to expansion.
It's always a good idea to know what natural sources of water are around though and use those where necessary, you will kill any life present in the
water if you can raise the temp above 75-80 deg C and hold it there for a while - but that will do very little for other types of chemical