About:

Plumbers install piping for water systems, drain, waste and vent systems, irrigation, water mains, bathroom accessories and gas. Steamfitters assemble and install pipe to carry water, steam, compressed air, gases, etc. HVAC/refrigeration fitters install, maintain and service refrigeration, heating, ventilating and air conditioning systems. Marine fitters install and maintain plumbing and pipefitting on ships.

TRAINING: 

5 years of classroom and on the job training.