Something about plastic pipes
Plastic pipe is a tubular section, or hollow cylinder, made of plastic. It is usually, but not necessarily, of circular cross-section, used mainly to convey substances which can flow ? liquids and gases (fluids), slurries, powders and masses of small solids. It can also be used for structural applications; hollow pipes are far stiffer per unit weight than solid members.
Plastic pipework is used for the conveyance of drinking water, waste water, chemicals, heating fluid and cooling fluids, foodstuffs, ultra-pure liquids, slurries, gases, compressed air and vacuum system applications.
Źródło: https://en.wikipedia.org/wiki/Plastic_pipework
What are the hydraulic works?
Hydraulics is a fairly complex area and not everyone can be found in it. In such matters require specialized knowledge and skills, and such work is also associated with great responsibility, because the slightest error can result in a major accident. Plumbing may involve many issues. Sometimes it will be installation of hydraulic, other times repairing the broken pipe or replace gaskets and scope of such work is very extensive. Specialists in the field of hydraulics are needed in each region, because each building are installed plumbing. So it is very important work, without which it would be hard for us to get around.
Replacing old water valve
When we find that in the house there is a water leak, the cause of which we can not define ourselves, we should immediately call a plumber. It is also important that we immediately shut the main water valve that shut off the water supply to taps and various water bodies existing in the home, and thus we prevent its further flooding. In new homes closing the main valve is not a problem, but in the case of older homes may be harder for us to determine which of the existing valves is the main water valve and an additional difficulty may be the same turn. In such a situation called our plumber will also replace the old water valve installed in our house.