STOP Buying Water Filters — This MILITARY Clay Method Cleans Water FOREVER

Before plastic cartridges, people cleaned their drinking water with fired clay, and it kept working for years. In the WWII era, clay filters kept hospitals, barracks and homes supplied with safe water. In this video: how clay traps bacteria, parasites and mud; why a simple scrub brings it back to life; why the garden-pot trick can be dangerous; how to build a proper two-bucket filter; and the last step most people skip. No power. No chemicals. No subscription. Just clay, gravity and patience. Subscribe to Sergeant's Almanac for more old methods that still work. #waterfilter #survival #clay