Internal drainage - rules of the organization, specific

Internal sewage

It has long been humanity faces the challengewastewater treatment. The story begins with the construction of sewer of ancient Rome. This is where there was the first interior drainage, designed for removal of human waste products. These tanks are very similar to modern septic tank, had periodically cleaned out. Weighty contrast - modern containers are fully sealed and prevent the pollution of groundwater and soil with harmful substances.

Ancient Roman sewer, cesspool, different engineering complexity. When its construction was taken into account the terrain and to raise the elevation drains on original used pumping stations. The width of the cloacal reached seven meters, forcing workers serving it, to move on it in the boat. Even after drainage has appeared in all the other countries of the world.


  • Modern sewage system
  • What you need for sewer installation
  • Installation of domestic sewage
    • Installing the risers
    • Installation of flowlines

Modern sewage system

In today's world of wastewater treatment problemIt helps to solve the installation of the system of treatment facilities - local sewage, consisting of septic tanks and the filtration area. the latest generation of cleaning systems can not only clear the drains to the state level, but also to give the water produced a number of useful properties. Subsequently, it can be used for irrigation, washing of the tracks on the country site and other technical uses.

Modern sewage

No sewage system the modern world it is difficult to imagine

According to the SNIP drainage - internal network devices and pipelines are responsible for allocating wastewater from sanitary appliances use and other technological equipment.

Sewerage is designed to remove the innerwaste generated in the process of human life, in other words, its sanitary and domestic activities. In most cases, this gravity systems, i.e. a system water occurs influence of gravity in which the movement of fluids. In addition, it does not require the use of additional energy. To eliminate the odor system is equipped with a hydraulic gate - siphon.

Tip: to domestic sewage should be provided free access of air.

Any internal drain in a private house It consists of the following mandatory parts:

  • container for receiving wastewater;
  • installation for pumping or wastewater treatment;
  • pipelines;
  • collectors;
  • risers;
  • branch lines.

In suburban homes, where the bathroom is located on thetangible distance from the riser assembly inside of sewer gravity type is not always possible. In such cases it is better to use a system consisting of a pump, a special container, and switch the pump by which the waste water is carried out by a special tube.

What you need for sewer installation

You must first make sure that the pipes andfittings for domestic sewage were purchased in sufficient quantities. It is necessary to buy the necessary inverse filters and air filter (if it is needed for the project).

What may be needed when installing sewers

What may be needed when installing sewers

What is needed for installation:

  • hacksaw;
  • Bulgarian special disc designed for cutting tubes;
  • tube diameter 50 mm to drain waste water from the plumbing and appliances;
  • pipe diameter of 110 mm to remove sewage from toilets and bidets;
  • pipe diameter of 110 mm for the riser.

Council: all branch pipes are installed with a certain bias. For pipes with a diameter of 50 mm - the minimum pitch of 0.025, normal - 0.035. For pipes with a diameter of 110 mm - minimum slope of 0.012, normal - 0.02.

Installation of domestic sewage

Installation of sewage - it is quite thorough anda long process that requires compliance with certain sequence, carefully and accurately. From competent actions depends on the system performance in the future and the quality of its use. Of course, to get really good results it is best to turn to professionals, but internal drainage with their hands - is also possible.

Before starting work, be sure to read the snip: Internal conduit and sewerage.

Installation and subsequent operation of the system requires full compliance with these rules. The internal drainage should be installed in accordance with the approved project.

Council: If the project is composed by yourself, be sure to show it to the expert, so that later no problems. If the project is approved, or, better still, made by specially trained staff member, you can safely buy all the necessary material.

Installing the risers

Installation of domestic sewage should begin withriser installation. First, do the layout according to the preconceived plan, and then proceed to install the pipeline. By installing a riser, try to comply fully with its vertical position and to avoid distortions and fractures in the field jointing pipes. The pipeline should be done by laying the pipe sockets up from the basement, at the same time arranging the audit.

Installing the riser

Riser pipes should be laid funnels up from the basement

What is a revision? It's fitting (tee), which provides free access to the places of the pipeline, which may cause congestion. As a rule, the audit established at each location where the pipeline forms an angle, in the beginning of each riser in the room and at the end of domestic sewage.

With a long linear pipe fittingsat a distance of no more than 30 meters apart. If the riser is planned to be sewn, when installing the audit should take care of the inspection covers, intended for the maintenance of the pipeline.

Audit and tee

Revision or tee that provides access for clearing blockages

Each sewage risers necessarilyends ventilated overlooking the ventilated attic or on the roof of the house in the form of an individual ventilation duct. For security purposes is strictly prohibited to display the ventilation of the sewer system in the chimney of the building network. Simultaneously, with risers mounted horizontal branch lines on all floors of the building.

Important: absolutely not allowed in places of location of the sockets pass through various constructions, for example, overlap.

Installation of flowlines

After installation of the risers are connectingthem flowlines from toilets, baths and other sanitary equipment. For this purpose, cast iron or plastic pipes for domestic sewage, and their diameter must be identical with the diameter of the sanitary device outputs.

Installation of flowlines

Installation of sewer system of plastic parts

Council: the branch pipe length must be less than ten meters and an angle of inclination must be such as not to impede free movement of effluent to the riser. At the same sockets are installed against the flow of wastewater.

Installation of sewer pipesmachining of pipes and tubes produced hand hacksaw or melkozubnymi wood. Cutting is carried out perpendicular to the axial section of the pipe. Burrs formed during sawing, be sure to remove and place chamfer coarse file. But the fittings and corners is strictly forbidden to cut and process. If necessary, all the elements of sewage treated with special grease or soapy water, use of the engine oil and its analogues is strictly prohibited.

If the installation of the internal sewer systemwill be carried out taking into account the SNIP and all the installation instructions, you will be able to achieve its long-term operation without fanfare, frequent blockages that lead to the exhausting drain cleaning, replacement of deformed pipes and other troubles.

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