A plumber is a craftsman who ensures that we always have water at home and that the sewage and heating systems work properly. He fixes leaks, lays new pipes and monitors the correct operation of complex engineering systems. It is impossible to imagine any residential building, office or factory without this specialist – after all, comfort and hygiene directly depend on proper water infrastructure. The profession of a plumber is in demand and always relevant, because accidents in the water supply sector can happen at any time. The work of a plumber is a subtle combination of knowledge, practical experience and readiness for the unexpected, without which civilization would simply not exist in its usual form.