aluminum sulfate is a flocculant IIRC, I know it would help with some of the smaller particulate matter but will it kill any nasties?


Thinking of adding the following

Methods:
-Distillation
-Reverse Osmosis
-UV (Incl SODIS)
-Chemical Treatment (Bleach)


Threats:
-Seawater
-Chemically Contaminated Water


So now we're getting into territory I know little about, so it's good to have all of your inputs. What will cover what?

UV for instance -- I thought it handled viruses and bacteria no problem but had trouble penetrating the oocysts. Turns out, it seems to be the opposite: bacteria and oocysts like crypto it does well, but viruses take a much higher dose.

Also chemical contamination can include such a wide range of things, is this chart too general to include it?

Will things like distillation generally work sufficiently for almost all chemical contaminators that it's a good idea to include, or are there enough exceptions that it would be risky? Should we have several types of chemical contaminators on the list (ie, contaminators with a boiling point below 212 and contaminators with a boiling point above 212, or oil based vs. non oil based, etc)

By the way, if anyone can think of a better way to organize the information I'm all for it, I just wanted to make it rule-of-thumb useful for your average new person to see a chart and think to themselves "Oh, I thought all I needed was this filter but it turns out I need to either chemically treat or boil my filtered water as well..."