Plumbing is a profession in which professionals install and maintain pipes and fixtures in a building. They also install and maintain water-conservation and venting systems. In addition to this, they can also alter appliances. They are also responsible for public water supply systems. Although many people associate plumbing with home improvement, it is also a vital part of keeping public health and hygiene.
Plumbing work must comply with state and local building codes and may require a local permit. These codes protect both the homeowner and the plumber by ensuring that plumbing work is completed safely. However, they are constantly changing, so it is important for plumbers and designers to stay updated on new code requirements. Resources such as the International Association of Plumbing and Mechanical Officials can help a plumbing professional stay up-to-date with current codes.