Bill<br>I have no experience with potassium permanganate other than the crystals burn skin. I can think of no advantage in using it over iodine for water purification. Iodine is more efficacious against parasites than chlorine tablets, which is why iodine is used by the military.<br>My preference in your situatio would be water treated with iodine or chlorine tablets followed by betadine wipes. I would not use water from a bottle, as the organisms from the human mouth cause VERY interesting and severe wound infections.