Cleaning the siphon by a plumber
Surely anyone kitchen sink once struggled with the problem of the obstruction. The most common cause water in such devices is the clogging of the trap by the crumbs or simply by fat. When household cleaning siphon ways fail, then we are forced to enlist the help of a plumber. It will be able to use more specialized ways of cleaning the siphon. Sometimes, however, it appears that the trap must be replaced with a new one, fortunately his undoing and the exchange will not be a big problem for a plumber. It will only have to remember the spin valve with water when replacing the siphon. Similarly, in case of replacing the whole sink to a new, although longer carry it out a bit more complicated.
About uses of pipes
Plumbing
Tap water
Pipelines transporting gas or liquid over long distances
Scaffolding
Structural steel
As components in mechanical systems such as:
Rollers in conveyor belts
Compactors (e.g.: steam rollers)
Bearing casing
Casing for concrete pilings used in construction projects
High temperature or pressure manufacturing processes
The petroleum industry:
Oil well casing
Oil refinery equipment
Delivery of fluids, either gaseous or liquid, in a process plant from one point to another point in the process
Delivery of bulk solids, in a food or process plant from one point to another point in the process
The construction of high pressure storage vessels (note that large pressure vessels are constructed from plate, not pipe owing to their wall thickness and size).
Źródło: https://en.wikipedia.org/wiki/Pipe_(fluid_conveyance)#Uses
Checking the status of your home network plumbing
Determination of the causes of water leaks in your home can take a plumber. They may be caused by a broken pipe or a leaky connection in your home network plumbing. However, check the status of your home network plumbing usually associated with the need for forging tiles in some parts of the house. It is good if you are the only tiles in one room, which can be quickly replaced. Otherwise, remove the leakage of water will be connected with the need to incur considerable costs. Sometimes leak turns out to be so serious consequences that you need to perform additional drying domestic premises, to prevent the growth of mold and mildew. At the same time it will be carried out replacement of cracked pipes.