The construction of a residential building or office building is impossible without planning and installing an external (external) sewage system ( ) By definition, this is a sewer network that stretches from the place of release from the premises to the place of discharge of purified water.
The external sewage system consists of:
- local treatment plant;
- well;
- pipe systems.
Pipes for external sewage are made of the following materials:
- cast iron. Pipes of this type are distinguished by a relatively low price;
- polyethylene;
- polyvinyl chloride. The use of this type of material allows you to install reliable and durable pipes that are difficult to react with chemicals. The service life of this type of pipe is up to 95 years.
The advantages of using plastic pipes over metal ones include ease of installation, high strength, the absence of corrosion processes in pipes and high frost resistance.
The development of science and technology resonates in the production of pipes. Metal pipelines are being displaced by polymer ones. Currently, PVC pipes are widely used in the construction industry. They are not combustible, they have high resistance to ultraviolet. To install the polyethylene pipes used for external sewage, expensive equipment is used, work with it requires highly qualified personnel, as well as special working conditions. When installing PVC pipes, these difficulties are absent: working with them is very simple, requires less time and effort.
During the construction of the house, the problems of flooding the land where the construction process is going on are also solved. To solve it, the use of a complex of drainage pipes is used, which is used to remove excess moisture from a piece of land (the foundation of the house). Pipe laying should be done with a slight slope, which provides moisture movement. Drainage pipes have a special appearance: holes are placed on top of the surface through which excess moisture seeps, then it flows down the pipe and enters a pre-prepared container or natural ditch.
The following types of drainage pipes are distinguished:
- With holes.
- With cleaning materials.
According to the type of raw materials used for production, pipes are divided into metal, ceramic and polymer. Metal and ceramic pipes have several disadvantages. This is a large mass of the product, which makes it necessary to use heavy equipment for installation, a complex installation process, low performance, short life and high cost of the drainage process.
Plastic pipes, on the contrary, have a large number of advantages that make products a market leader in this direction. These include:
- long term of operation. It ranges from 50 to 60 years, which is two times more than that of
asbestos-cement and ceramic; - have a high level of strength;
- not subject to corrosive processes;
- light weight;
- the inner surface of the pipe is very smooth, so blockages do not form on it;
- low cost of parts, as well as the possibility of self-installation without the involvement of professional workers and special equipment;
- wide range of pipes for different purposes.
PVC pipes are made from one or more layers of raw materials. They can be flexible (soft) or straight (rigid). Pipes also differ in surface type: they are smooth or corrugated.
Pipes for sewage and drainage have significant differences ( /):
- Water and sewage moves through sewer pipes, drainage pipes transport groundwater.
- Various raw materials are used for sewer pipes, for example, metal, ceramics, cast iron, polymers. Drain pipes are almost entirely made of polymers.
- Sewer pipes and joints in them must be completely waterproof, drainage pipes allow moisture to pass through.
Both of the above types of pipes are very popular among buyers, so there are a large number of proposals for their sale on the goods market, so buyers have the opportunity to choose the best option.