As the November 5th Presidential election approached, I focused on preparing for emergencies—such as protests or infrastructure attacks, regardless the winner (or loser). I stocked up medical supplies and took trauma training for massive bleeding incidents. My wife and I majorly topped off food and water supplies, while I purchased some additional items, particularly for dealing with power outages.

Water bothered me most. What if some crazy person poisoned the water supply, or there was unexpected contamination incident—such as agricultural or industrial runoff or more Mexican spillage. The solution that made most sense: Water-filtration system, for purifying the liquid from almost any source.