Plumbers do much more than fix sinks and toilets in residential homes. They design and install piping systems that distribute water and remove waste from buildings and connect heating and cooling systems. Plumbers have to be knowledgeable in water distribution, blueprint reading, local ordinances and regulations, mathematics, mechanical drawing, physics, welding and soldering.

Education Options: Technical School, Community College, Registered Apprenticeship Program, and Industry Training Program

Qualifications: In most parts of the United States, plumbers must be licensed before they may work independently, which requires 2 to 5 years of experience and passing a written examination.
(Source: I Build Your Future Trading Cards)