The Division wrote:
K Effective wrote:
Boil orders are kinda funny, because as you boil the water, some or all of the pure water leaves as steam, thus concentrating the contaminants left in the water. Unless you were to boil the water and capture/cool the steam back into water, which would then be distilled water, and pretty pure.
Pot + lid + boiling = distilled water. Of course, if there were solids in the water after boiling (can't imagine there would be much), I'd use a ladle and take from the top of the pot.
It depends on the level to which you wish to decontaminate your water. Boiling with the lid on raises the pressure inside the pot and thus raises the temperature at which the water boils. That may kill more bacteria, which is probably good enough for this scenario.
But, allowing the distillate to simply drain back into the water in the pot will actually only raise the total concentration of contaminants in the resulting water, as some small amount of the steam will escape the pot. Dipping off the top simply eliminates large mass contaminants. True distilled water is boiled into steam and then removed into a condenser to be cooled back into liquid. The original volume of water is boiled down to a fraction of a remainder, which is then highly contaminated, but still liquid enough to be disposed of.
Using the distilling evaporator at my job, we seek distillate with less than 2micromhos of conductivity. Pure enough to release back into the environment. With our multi-stage system, we make water at 0.055 microsiemens/cm, pure enough to not conduct electricity.
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