Marine Corps

1171:Water Support Technician (MOS 1171)

Affectionately called “water dogs,” this Marine MOS manages the upkeep and maintenance on various water systems, tanks, valves, and the pH level of water while deployed. If water systems are not functioning properly, have an improper pH level, or are not clean, then Marines could become ill or suffer from dehydration.


Is there a clearance required?: No

Is this a combat or support MOS?: Support


Military Duties:

Marine Corps Water Support Technician, or Marine Water Dogs, are the individuals who ensure there is clean drinking water in any location. This can be for the people on base or for a group of displaced civilians in a deployed area. These Technicians work with different systems and chemicals to complete their work. Some of the areas that Water Dogs work with include pumps, filtration systems, purification equipment, water storage areas, distribution systems, and laundry/shower facilities. Within these facilities and systems, Water Support Technicians are in charge of installing, operating and repairing.

Military Duties Translated:

Working as a Marine Water Dog or Water Support Technician provides experience in areas such as plumbing and water purification. Marines who work in this MOS can find positions as Pipelayers, Pipefitters or Steamfitters that relate to the equipment and plumbing job functions. Individuals can find work as Water Resource Specialist and Water/Wastewater Treatment Plant and System Operators that use the skills related to water purification. Apprenticeship programs through the United Services Military Apprenticeship Program (USMAP) are available that lead to a U.S. Department of Labor Certification as a Journey Worker. This allows for increased civilian career opportunities.

Some civilian jobs best suited to this type of military experience:

Instructor