Basic plumbing involves water being provided by the local authority or municipal authority after purification. The water is drawn from some remote water source such as a river, lake, reservoir, dam, sea etc. Some residences and offices or industries where the water is provided have their own water tanks at ground level where this water accumulates. It is then pumped to the water tank on the roof. There are valves that control the flow of water at each stage. In cooler climates the basement of a building may also have a boiler which uses gas to provide central heating. Where there is abundant sunshine solar power can be used to heat the water supply as well. Most pipes which provide a route for the water to travel are made of metal. These pipes connect to taps from which we access water.
