I use reverse osmosis, it's the only thing that can remove certain salts like sulfides. When I am out hiking I use the Sawyer filter, which is good for a long time. You can boil if you are just worried about bacteria and parasites, but if you are worried about other contaminates, like lead, or salts, I would recommend nothing less efficacious than reverse osmosis.
Viewing a single comment thread. View all comments