- Installation of water supply and drainage systems, pipe fitting cutting and joining ,installation and repair of plumbing fixtures , leak detection and repair, drainage cleaning and blockage removal, installation and maintenance of water heaters, reading and interpreting plumbing drawings and blue prints, knowledge of plumbing codes and safety regulations, use of plumbing tools and equipment, preventive maintenance of plumbing systems ability to work independently and as a team , physical fitness and manual dexterity, reliability and professionalism ,record keeping and reporting of completed work, ability to work under pressure and meet deadlines