A small unit water purification system prototype filters water at Court House Bay’s Camp Sweat training area during a test run by Marines with 2nd Marine Logistics Group aboard Camp Lejeune, N.C., May 9, 2014. The prototype is an experiment aimed at lightening the Marine Air-Ground Task Force at the platoon level, where industrial water purification systems are an impediment to unit mobility and independence. The system weighs approximately 75 pounds and allows a platoon-size element of Marines to purify 7-10 gallons of water per hour from local water sources. Additionally, the systems are designed with user-friendly piping and filters that can be assembled in minutes and limit the need for specially trained personnel. A Marine in a field environment such as the desert requires approximately two gallons of water per day, and the new system could greatly reduce the need to regularly resupply small units.