A plumber's work consists of the installation of fixtures for gas, water, sewerage, and drainage purposes; the setting up in buildings and residences of plumbing fixtures and their appurtenances, such as water filters, water meters, hot-water tanks, suction tanks, cold-water tanks, bathtubs, showers, washbasins, sinks, water-closets, and urinals; the installation of water, gas, and waste piping for laundry machines; and of all compressed-air work. The plumber also puts in all toilet and bathroom auxiliaries, such as paper holders, glass shelves, medicine closets, towel racks, and soap and sponge holders. His work also includes the installation of waste-water leaders, soil and vent lines, and the sewerage drains within and beyond the house line to the street main. He plans pipes for hot and cold domestic water supplies, and puts in cooling jackets and priming pumps. He must be familiar with ice-machine work, thermostatic work connected with plumbing, pipework connected with pneumatic vacuum-cleaning systems, gas piping, with making connections for gas fire-logs, stoves, furnaces, driers, boilers, and heaters, and must be adept in assembling, hanging, and connecting gas illuminating fixtures and iron pipe for speaking tubes.

Fig. 207.   Trap.

Fig. 207. - Trap.

There is nothing in the work of the plumber which embodies physical or nervous strain, and as the work is extremely varied in character, it should stimulate the intelligence of the worker. The successful plumber must have strength, endurance, initiative, and special adaptability for his work. Plumbing cannot be termed an unhealthy occupation, although there is some danger of disease from germs, gases, waste matter, dampness, etc., especially on repair work. This danger, however, can be practically eliminated when the proper precautions are taken.