Water safety during touring? This question raised a new sub-problem of which I was not at all aware of.

I carry a heater to boil the water before I drink it but I am unsure whether it removes all dirt from water. Please, note the water may contain some mineralization (noted in the earlier question). There are different types of tools to test for different mineralization such as arsenic but probably many others. Please, teach/show how to handle water during touring.

Helper questions


How do you maintain your water? 
How to operate with water bags?
How to maintain water-containers?


Related questions


Water tests during travelling? - a general question here. 
How do you carry the water suitable for touring? Answered here.
Rather than boiling water get one of these filters from katadyn  or MSR



It won't remove all chemical poisons - but neither will boiling - it can remove some depending on how soluble they are. See Water filter use

And unless you are drinking from chemical waste spills for weeks on end I wouldn't worry, if one area is high in arsenic the next won't be !