you get water and look at it under a micro scope
well all peoples need to stop to drinking and smoke to thewn to the river and also some peoples sould be clean river no worries!By Stundent
you boil it for i don't know ten maybe fifteen min. but you cant boil salt water because the salt has to be removed by some other way.
You must boil its at a 100 degrees Celsius or 212 degrees Farenheit which will sterilize it and then it must be filtered.
The cheapest (but more complex) way is to use reverse osmosis, which produces two water streams... one with less salt, and one very concentrated in salt (perhaps toxically so) and "floaties" that...