Is it difficult for you to imagine your own private house or cottage without autonomous water supply and sewage? Agree that a comfortable home ownership is many times more comfortable for living than a building without all amenities. But you do not know where to start and how to implement your plan?
We will help you deal with this issue - the article highlights the popular schemes and options for arranging the sewer system. The planning stage, the selection of a treatment plant and the procedure for performing work are considered in detail.
Contrary to popular belief, the do-it-yourself sewer of a country house can also be perfectly equipped. If you correctly design and build a system, then it will serve no worse than a professional one. For a better understanding of the material, we selected schemes, thematic photos and videos with expert advice.
How is a typical sewage system arranged?
"Facilities in the yard" can satisfy only if it comes to a summer cottage without running water, where the owners appear occasionally and for a short while.
Improvement of a residential building primarily involves the installation of water supply and sewage. They are being designed at the same time. If the water is already connected, then the sewage system is “adjusted” to the existing network.
When choosing a sewerage scheme for a residential building, there should be no mistakes. An incorrectly assembled network will not work or problems will arise during its operation (+)
The development of a sewer system wiring option is usually carried out at the building design stage and is being constructed during the construction process.
If necessary, you can, of course, perform these works both in the already built house and on the equipped plot, but it will be more troublesome and costly.
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Suburban drainage hatch
Independent sewage inside
External treatment facilities
Soil treatment system
You need to know that the system consists of two interconnected elements:
- External sewage. It is located outside the building and includes a pipeline that connects to a centralized sewage system, or to a sewage treatment plant. The latter can be of any type.
- Domestic sewage. This is a construction of pipes connecting the taps of all plumbing fixtures located inside the building into a single system.
Both parts of the sewage system perform a common task and function in concert.
An autonomous sewer system consists of internal and external interconnected parts, each of which must clearly fulfill its own function
Principles of designing a sewerage of a private house
The local sewage project for a country house should be as simple as possible in order to minimize the number of errors that are possible during installation. Such a scheme can be developed independently, based on drawings on the Internet. And it’s better to entrust a complex project to specialists.
A simple sewer of a private house consists of typical elements: pipes connected to plumbing fixtures, a riser, an external pipeline and a storage or treatment plant into which all the sewage from the house is drained.
When choosing the location of the inspection wells and treatment facilities, as well as when choosing the depth of the trenches, you should carefully adhere to SNiP, regulatory documents (+)
When developing a plan for a sewer system, they are guided by several principles:
- In a one-story house, it is reasonable to place nearby the rooms in which the sanitary appliances are installed (kitchen, bathroom, toilet).
- Blocks with plumbing are better located closer to the point of output of pipes to the street.
- In a two- or three-story residential building, rooms with plumbing are planned one above the other to connect all the equipment to a common riser.
- The internal sewage scheme of the house should be designed so that the number of connections is minimal. This will positively affect the efficiency of the sewer system, and the likelihood of blockages and malfunctions will decrease. The main rule: simple - more reliable.
- Sometimes the layout of the house is such that it is necessary to develop a complex communication scheme. An alternative is the installation of several simple systems with separate external pipelines and treatment facilities.
There are houses where it is necessary to use a sewage pumping station in the drainage system. In such cases, it is better not to save on technology, and entrust the design and installation of complex sewage to a country house with professionals.
A standard sewage hose is 25 m. If the distance from the machine to the treatment plant is greater, the drains will have to be pumped out with a vacuum pump, which will cost more
When developing a sewage project, several important factors should be considered:
- The arrangement of the water supply system. It can operate from a private hydraulic structure (a well or a well with a pump) or a centralized network.
- Number and type of plumbing fixturesto be installed, as well as how much each of them consumes on average water.
- Distance from home to septic tank, the volume and number of chambers, the total length of the pipeline.
- Cleaning method drive, the presence / absence of access roads for special construction equipment.
- Climate and hydrogeological features of the area: soil freezing level, ground water cover, site relief.
In the design process, all the nuances are taken into account: the layout of the sewage system (internal and external), the type and quantity of materials, turns, joints and joints.
If the local sewage system provides for the installation of additional equipment (pumps, compressors or aerators for septic tanks), then the locations of the devices are also indicated on the drawings.
Let us analyze in more detail the design and arrangement of the external and internal sewer system.
External sewage system
In the simplest version, an external sewage system connects the building with a centralized sewage system. Unfortunately, it is far from always possible to implement it.
More often, owners of private houses have to equip autonomous sewers, which suggests the presence of various types of treatment facilities on the site
The treatment facilities independent of centralized networks include various types of storage tanks, which we will consider later.
Option # 1 - cesspools of different designs
The cheapest option is to build a system supplemented by a well with a filter bottom. It is a pit, the walls of which are lined with bricks, similar material or even tires. The bottom remains free, a meter filter of sand and gravel with a thickness of 1 m is poured onto it.
Sewage enters the tank, the liquid is partially absorbed into the underlying soil layers. Solid sediment that has not passed through the soil filter accumulates and is periodically pumped out. The advantage of such a scheme, in addition to low cost, is considered to be the extreme simplicity of the arrangement.
But there are a lot of shortcomings. First of all, this is the danger of contamination of the environment by effluents, the threat of which arises from flooding of the system with flood waters or from depressurization of structural parts. According to the regulations, only gray drains are allowed to be cleaned in this design - contaminated water from the kitchen, baths, etc.
A cesspool with a filter-type bottom is considered the easiest option for waste disposal, but it is also far from safe
Installation of a cesspool without a bottom is possible only on sandy soils with sufficient filtration properties to absorb treated wastewater. Between the conditional bottom of the absorbing well - this sewer structure and the level of groundwater in the area should not be less than a meter thick soil.
It is advisable to build a cesspool in the country house or for the sewerage of a country house in which the minimum number of plumbing fixtures is installed.
The most simple option is the implementation of concrete rings, for the construction of which several standard steps are performed:
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Stage 1: Buying the estimated number of concrete rings
Stage 2: Choosing a place for the pit device
Stage 3: Development of the pit for the installation of the mine
Stage 4: Installing the start link with a sealed bottom
Stage 5: Assembling the Barrel of a Concrete Cesspool
Stage 6: Laying the floor with a hole for the neck
Step 7: Installing the cesspool neck
Sinkhole hatch for pumping
Sealed tanks or reservoirs are safer because they involve the accumulation of effluents and their periodic pumping. The liquid is unable to seep into the surrounding soil layers.
Such drives can be installed under any geological conditions of the sites, even at high GW. They do not create problems for prudent owners who are considering how best to make a sewer for their own home.
The settled liquid effluents processed in the storage tank can be used as process water for cleaning and irrigation of the site
Professionals advise paying special attention to the volume of installed capacity. For its pumping, it will be necessary to call scavengers, who most often charge a fee for a call, and not for volume.
Given that the machine pumps out 8000 liters of fluid at a time, it makes sense to choose a tank of exactly this volume. But the cost of such a tank is usually high. Therefore, it is worthwhile to choose a compromise option in order to optimize the cost of the services of the cesspool workers. We recommend that you deal with the specifics of choosing a container made of plastic for a septic tank in more detail.
In the construction of cesspools, a variety of materials and finished structures are used:
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Construction of an overflow cesspool
Plastic containers for sewage
Immersion of the plastic drive in the ground
Ready-to-install reinforced concrete construction
Reinforced concrete cesspool filled at the facility
Brick sewer
The budget option of the European cubes cesspool
Country casket from tires
When constructing a cesspool or a sealed storage septic tank, it makes sense to mount a check valve to prevent the flow of wastewater from the overflowing treatment plant into the house. The valve will also protect against rodents that can get into the room through pipes.
Option # 2 - septic tanks of anaerobic type
Anaerobic bacteria, which do not need oxygen in the process of life, are used to clean the waste fluid. Structures, as a rule, have two or three, rarely a larger number of chambers in which the effluents are split and treated.
After the septic tank, a post-treatment of the liquid in the filter wells, in the filtration fields and the like structures is required. Devices can be installed on sandy and gravel soils.
Septic tanks of this type can be made independently of several concrete, metal or brick chambers. You can purchase a finished construction made of plastic. Manufacturers offer a large number of different models of such septic tanks.
The advantages of the equipment include a fairly high degree of purification, good throughput and the possibility of self-manufacturing.
An anaerobic septic tank is not able to completely clear the effluents entering it. The liquid leaving the device needs to be treated in an infiltrator, an absorbing well, and a filtration field
Among the shortcomings, it is necessary to take into account the rather high cost of finished models, the need for regular cleaning of the septic tank. True, it will be required to do this much less often in comparison with the drive. But in any case, when determining the place for the septic tank, you need to take into account that the sewage machine should freely approach it.
Another minus is the obligatory arrangement of post-treatment of water coming from the septic tank.
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A septic tank is a treatment facility for autonomous sewage, in which waste water is purified and clarified under the influence of physical processes, it is disinfected by anaerobic bacteria
Purification and clarification of waste water occurs during sedimentation, due to which heavy fractions separate and settle to the bottom
To service large objects, a septic tank is collected from several containers, which are cameras of a treatment plant
The industry produces septic tanks in an abundant assortment. To equip the site, you can choose a system in one building or purchase the modules from which the sewer is assembled
The weighty minus of septic tanks is the insufficiently high percentage of purification, not exceeding 70%. For the disposal of wastewater from a septic tank, soil purification is required, for example, in a filter well
If the construction of the absorbing well is not possible due to the high occurrence of groundwater, the soil aftertreatment is carried out by filtration fields
An upgraded version of the filtering field - the infiltrator successfully performs its functions. It costs more, but it is built much faster
If it is not possible to set up an after-treatment system at the suburban area, the effluents are discharged and discharged into a public gutter, transporting them to the municipal wastewater treatment plant
Septic tank of two plastic containers
Three-chamber septic tank in a common housing
Construction of a multi-chamber septic tank
Ready to install sewer modules
Waste water collection in an absorption well
Construction of a filtration field
Advanced post-treatment option
Public gutter
Option # 3 - aerobic treatment plants
Perhaps the best option for organizing an autonomous sewage system in a private house is a high biological treatment station. They are much more compact than anaerobic septic tanks, they treat wastewater by 98%, that is, after-treatment is not required later.
Filtered water can be discharged into ponds, ditches or into storage wells so that it can later be used for household needs. The unpleasant smell near such structures is completely ruled out.
The disadvantages of such stations include the energy intensity of the equipment. To work, he needs a continuous supply of oxygen, which is pumped using special compressors powered by electricity. Another disadvantage is the high cost of the system. However, you need to understand that significant investments in the future pay off.
Aerobic treatment plants do not require significant operating costs, while an almost free cesspool, for example, requires constant costly pumping, and facilities with a filter bottom “clog” after a while and stop absorbing water. We have to fill up such a hole and equip a new one.
Biological treatment plants purify effluents at 98. Technical water coming out of them can be discharged into a reservoir or used for household purposes
When choosing the type of treatment plant suitable for their site, experts recommend not to rush and to calculate all the options for arrangement. Do not try to save as much as possible on the septic tank. In the future, such savings could turn into serious problems.
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Deep sewage station
Power connection
Compressor devices in the boxing station
Multi-chamber sewer system
Multistage wastewater filtration
Location of the station near the housing
Installation under any geological conditions
Reliability of the sewer system
How to choose a treatment plant?
The deciding factor should be the operating conditions of the equipment, in addition, special attention should be paid to:
- Frequency of use of the future sewer system. If we are talking, for example, about a country house, where people appear periodically, there is no point in using high-tech equipment. Bacteria in the absence of the nutrition that the drains supply them will simply die.
- The daily volume of drains. This indicator characterizes the required throughput of the selected treatment facilities. It is affected by the number of people constantly present in the house, the number and type of plumbing fixtures, etc.
- The ability to connect equipment to electricity. This is important if you plan to install an aerobic treatment plant.
- Budget, which is planned to be spent on the purchase, installation and use of a septic tank.
- Type of soil and level of subsoil water. If the latter is too high, the operation of the septic tank may be difficult or simply impossible, since the purified liquid will have nowhere to go. The same thing happens when installed in clay soil, which does not absorb or pass water.
Determining the type of treatment equipment is a responsible undertaking. The effectiveness of the functioning of the entire system depends on this. When developing a project, some difficulties may arise associated with hydrogeological features and terrain.
In particular, the selection of a treatment plant option for an independent sewer network is selected taking into account hydrogeological and geological conditions:
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In areas with a high groundwater mirror and clay rocks, which are located at the depths of the sewage system, sealed cesspools are installed or storage tanks are installed, which, as they fill up, need to be pumped out and the drains removed on a sewage machine
Significantly faster and easier to install plastic storage tank - an improved version of the cesspool. In the case of a high groundwater mirror during the flood period, plastic tanks anchor
If rocks with good filtration properties (sand, gravel, pebble) are opened at a depth of the bottom of the septic tank, a two-chamber septic tank is constructed. The first chamber has its impermeable bottom, the second has a soil filter instead of the bottom, through which the water settled in the septic tank is recycled to the ground
In the three-chamber septic tank, the first two compartments are made with an impenetrable bottom, the soil filter is arranged only in the third well. The more chambers in the septic tank, the higher the wastewater treatment
An excellent alternative to a cesspool and a septic tank made of concrete rings will be a ready-made concrete structure, which is simply installed in a foundation dug in advance. By analogy, you can fill the septic tank in place by constructing a formwork for pouring
For soils with good filtration qualities, factory-made polymer septic tanks are suitable. They clean only 60-75%, therefore, for the disposal of the water purified in them, additional treatment in an absorption well or filtration field is required
A deep biological treatment station can be installed in areas with any geological and hydrogeological conditions. It cleans by 93-97%, the water purified in it can be dumped directly onto the relief, used in watering and cleaning the territory
Sewer station is the safest equipment in the environmental sense, it can be placed next to the foundation. Less option: volatility, high price and expensive service
Reinforced concrete cesspool
Plastic waste collection container
Two-chamber homemade septic tank made of rings
Three-chamber septic system of their reinforced concrete rings
Prefabricated concrete structure
Anaerobic Cleaning Plant
Deep biological treatment station
Location of the station near the foundation
Depending on the type of soil, after-treatment systems for septic tanks are designed. It can be filtration fields or absorbing wells. The former should be used on sandy and sandy loamy soils, and the latter on clay and loamy soils.
The level of groundwater also affects the choice of the type, material of the septic tank, the features of its installation.
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Water drainage well
Filtration field for additional sewage treatment
Assembly and installation of cartridge infiltrators
Discharge of treated water into the gutter
An important point - the place for installing the septic tank must comply with sanitary standards. First of all, it should be at least 5 m from the apartment building, and 50 m from the drinking water intake point, for example, from the well. It is advisable to install a septic tank at the lower point of the site.
Sewer manholes are an essential element of external networks. They are installed on bends and every 25 m of a straight section of the pipeline
This will make it possible to use the natural relief to create a slope for the pipes. This will facilitate the work. It is advisable to conduct a pipeline to the sewage treatment facilities of a private house in a straight line, since each turn can be considered as a potentially hazardous area for blockage.
Here, a viewing well is necessarily equipped. The connection of the supply pipe and the septic tank is carried out by means of a rubber cuff. So it will remain intact after seasonal shifts of soil.
Arrangement of an external sewer system
The external sewage project is being developed so that it is as close as possible to the septic tank and the pipeline section is straight. As for pipes, the choice in favor of polymers is rational.
Selection of required materials
Most homeowners choose synthetic sewer pipes. They are suitable for both internal and external wiring. These are durable corrosion resistant products. With strong mechanical stress, they are able to deform, but rarely crack.
So, on the smooth inner walls of PVC and HDPE sewer pipes, deposits accumulate less than on metal surfaces. Due to this, the highway is less prone to blockages.
Polymer pipes are environmentally friendly. When heated, materials do not emit toxic substances into the atmosphere, water or soil.
Products made of polymers are resistant to acids and alkalis. Reactive drains do not harm the pipes, which positively affects their life. Also, polypropylene and polyvinyl chloride well tolerate high temperatures (up to 60-100 ° C).
Nikolay Fedorenko
Expert in the field of arrangement of sewer systems and water supply systems
An important nuance. Professionals are strongly advised not to choose pipes from different materials for conducting external sewage in a private house. The risk of joint failure due to different indicators of thermal expansion is too great.
- Nikolay Fedorenko Expert in the field of arrangement of sewer systems and water supply systems
For the installation of the pipeline, connecting parts, tees, fittings will be required. To make it convenient to inspect and repair the sewage system, it is necessary to take care of the availability of revision niches, inspection wells and hatches for them.
It is also necessary to choose a suitable sealant for processing joints. It is best to give preference to a special silicone composition with antiseptic additives.
Features of the installation of external networks
In general, the installation of sewage systems is not much different from the laying of water pipes, but there are differences. First of all, the sewage system does not always need to be insulated. This is explained by the fact that the liquid passes through the pipes without stopping and, theoretically, they stand empty most of the time.
In addition, the effluents leave the internal system with a temperature of at least 15 ° C, while moving through the pipeline, they simply do not have time to freeze.
Therefore, sewer pipes can be laid about 0.5 m above the freezing boundary of soil layers. But in areas with cold winters it is better to insulate them for safety. This can be done in any suitable way by analogy with the water supply.
You can not use mineral wool, which gets wet and at the same time loses its insulating properties. A good option is polystyrene foam, foamed polyethylene with a foil-coated outer shell.
If severe frosts are possible, then pipes laid underground and in unheated rooms of the house are insulated with heat-insulating material
Laying of external sewer pipes is carried out under a slope, which allows drains to move by gravity. For plastic parts, the minimum slope is 0.8 cm per meter of pipe.
The best option is 1.5 cm per meter. For asbestos pipes, these figures are respectively 1.5 and 3 cm per meter. A larger slope is not recommended, otherwise the liquid will merge quickly, and large inclusions can be deposited on the walls and clog the pipe. Detailed calculations of the slope of the sewer pipe with the formulas are given in this article.
Pipes of the external network are laid under a certain slope. Do not neglect the recommended values of the slope of the elements, otherwise the risk of clogging increases
Experts remind that the laying of external sewage pipes starts from the point of insertion into the centralized sewage system or from the septic tank and moves towards the house.
Installation includes several stages:
- A trench of a pre-calculated depth is excavated. It is advisable to immediately maintain the desired slope. It is not advisable to pour the finished trench. This is quite time-consuming, given the need for additional bottom compaction.
- Sand cushion is poured. The height of the structure is 0.1-0.15 m. The sand is well shed with water, and then carefully tamped.
- Pipes are placed on the prepared base. The presence of a given slope is checked.
- A layer of sand is filled up with a height of about 0.1 m. The backfill spills again and is compacted.
- Backfill is carried out.
During the installation of external sewage, you need to remember about the need to equip viewing wells. They are placed at all corners and in areas where there are differences in depths. In addition, such structures are also installed in direct sections every 25 m.
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Trench for laying sewer pipe
The starting stage of the construction of the sewer
Sewer pipe slope
Sewer Pipe Height
Domestic sewage system
An internal sewage system is a collection of pipes and fittings that connect them. This whole system ensures the discharge of wastewater from plumbing equipment to an external sewer pipe.
Home network device
To drain the effluent, a riser is used - the structure can be one for the entire building or several. The latter is practiced when the area of the house is large or the bathrooms are located at a considerable distance from one another.
A riser is a vertically located pipe running from the basement of the building to the roof. The lower part of the part is connected to a drainage pipe, which is connected to an external sewer. The upper section of the riser rises above the roof, where it rises at least 50 cm.
Pipes with different operational characteristics are used to equip internal and external networks.
The upper part of the riser is displayed on the roof. It is not sealed, but well covered from rain and dirt. This is necessary, because at the moment of water discharge, rarefied pressure is created in the system, and air can squeeze out into the room.
An alternative would be to install an aeration valve that lets air through, but protects the house from the sewer stink.
Plumbers allocate a number of rules, which are strictly not recommended to be violated:
- The diameter of each of the supply pipes cannot be less than the supply of plumbing equipment.
- The toilet is connected to the riser only separately from all other devices.
- All plumbing fixtures should be located no further than 3 m from the riser, the toilet should not be further than 1 m.
- There may be several devices on the outlet pipe of the proper diameter. In this case, the toilet should be connected first. All other equipment is included in the circuit above this point.
- The diameter of the pipe extending from the toilet is always not less than 100 mm. Inlets longer than 3 m must have a cross section of at least 70 mm, longer than 5 m - at least 100 mm.
In addition to a competent choice of pipe diameter for the prevention of blockages, it is important to correctly form the corners. For example, 90 ° turns are unacceptable, since blockages will inevitably form in this place and pipes will quickly become clogged.
Sections with 90 ° turns of the pipeline are thought out in such a way as to use 2-3 bends, which are set at 30-45 °. This is necessary to avoid the accumulation of sewage in the knees and blockages.
To form turns and bends, special shaped elements are used that can be bought at any store
Sometimes the "craftsmen" are advised to bring the fan pipe into the general ventilation system. This does not need to be done categorically, otherwise the house will be filled with extremely unpleasant odors, which will be impossible to remove.
When arranging a sewage system, it is worth thinking about sound insulation. Water moving through pipes can make a lot of noise. The best option is wrapping parts with mineral wool. After that, they are placed in drywall boxes.
At the same time, it is important not to forget about the inspection hatches, which are installed at all turns and every 15 meters. Another important point: the mandatory presence of a check valve. It is installed on the pipe connecting the septic tank to the house sewage system.
If this is not done, with a possible overflow of the tank, sewage will rise up the pipes and fill the basement or lower floor.
Design Features
In order to properly perform the wiring of the sewage system in a private house, you need to draw up a competent project. To begin with, a scheme is performed on which the installation locations of plumbing fixtures are indicated.
Before this, you need to consider at what distance from the riser the equipment will stand, how to connect to the sewage system and what should be the cross-section of pipes suitable for it.
It is also important to determine the type of sewage system. You can choose from two options: gravity and pressure. In the first case, the pipes are laid so that the drains flow by gravity.
There are regulations governing the minimum slope of such pipes. For parts with a cross section of 50 mm, a slope of 3 cm per meter of pipeline is selected, for a pipe of 100-110 mm in diameter - 2 cm.
When designing an internal network, the number of plumbing fixtures is taken into account and the optimal way to connect them to the common system is considered
If a part with a cross section of more than 160 mm is selected, they are laid with a slope of not more than 0.8 cm per meter. In addition, you must also take into account the height difference. So for the toilet, it should be 1 m, for the rest of the equipment - 3 m. If these indicators are exceeded, it is necessary to equip additional ventilation at the ends of pipes that are suitable for the devices.
For the implementation of the pressure sewer project, a pump is required, so the slope for the pipes is not needed. We recommend that you familiarize yourself with the types of sewage pumps and the features of the choice of such equipment.
To determine the diameter of the supply pipe for each plumbing device, a one-stage drain is calculated. This can be done based on its technical characteristics.
Practice shows that most devices can work with a pipe section of 50 mm. The exception is the toilet, it will require a 100 mm pipe. In addition, you need to identify the location of the riser.
Usually it is mounted in a toilet, near the toilet. If you plan more toilet rooms or “wet” areas are distributed around the house, the number of risers will have to be increased.
When drawing up a wiring diagram, it is desirable to minimize the number of turns of the pipeline and make its length as small as possible. This will reduce the risk of blockages.
Installation of an internal network
Internal wiring begins to be mounted with risers. The ends of the pipes are taken to the basement and to the roof. The lower section is connected to a horizontally laid pipeline that discharges effluents to a treatment plant.
Then, to the risers are connected taps from the toilet, each separately. Further higher than the toilet bowls were connected, pipes from other appliances are supplied.
When connecting plumbing fixtures to the sewer, a siphon is required, which prevents the appearance of an unpleasant odor
Siphons are installed on all plumbing equipment, which are then connected to the supply pipes. These are the main stages of arranging the internal network. All joints made must be airtight, pipes are rigidly fixed to ceilings or walls.
For the arrangement of intra-house sewage, it is optimal to use PVC pipes with sockets. They are easily cut with a special saw and connected with sockets. A corrugated pipe is used at the sewage outlet to the street, which is well resistant to possible soil movements.
To connect parts to a single network, shaped elements are used to help arrange turns, switch from one diameter of the part to another, etc. To facilitate the process of connecting the pipes, the sockets are heated in hot water.
All plumbing equipment is connected via siphons. This is the name of a bent pipe in which a water seal is present, eliminating the appearance of a smell of sewage in the room.
These devices can be metal or plastic. When choosing it is better to focus on the material of sewer pipes. If they are polymer, then it is advisable to install plastic siphons.
Some plumbing fixtures are initially equipped with siphons, and in the toilets it is provided for by design. If the sink or bathtub is sold without siphons, they are purchased separately.
Siphons can be corrugated, have a bottle or tube shape. Innovative development - dry water seal.
Corrugated Siphons the cheapest. They are convenient in installation and operation, resistant to aggressive chemicals. However, it is undesirable to connect them to sinks into which hot liquids are often drained.
Bottle Siphons similar in shape to a flask. This can be both an advantage and a disadvantage, since objects accumulate at the bottom of the device. If a ring or valuable item falls into the sink, it is easy to remove. On the other hand, blockages can form in the siphon due to this form.
Pipe siphons have a U-shape. Solid particles can also accumulate at the bottom of such a siphon. They are removed using a special knee.
There is a small amount of water in the water trap of the device, so it can evaporate and cease to protect against the smell of sewage.
Dry siphons. They dry after the water drains into the sewer. The devices are equipped with an elastic membrane that prevents air from entering the room. Such a siphon will cost more than less technologically advanced analogues, but there is no problem with evaporating water from a water trap with it.
For all its advantages, corrugated siphons are sensitive to high temperatures, quickly deform and fail, therefore, if possible, it is better to use other models
The siphon may not work in two cases:
- Lack of ventilation. Under such conditions, the vacuum will simply suck out the liquid from the hydraulic seal and thereby open it.
- Siphon drying. This occurs with rare use of plumbing. To avoid odors, siphons should be closed with a stopper or cloth.
Sewer pipes and risers are often masked with decorative boxes. To prevent noise during operation of the system, it is insulated with mineral wool or other suitable materials.
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The drainage system from a private house is built without fail, if the facility is equipped with a water supply system
Due to the small load of the systems, much less than in multi-storey buildings, both the branch branches and risers of the systems are assembled from polymer pipes: PP for sewage and PVC for water supply
A significant plus of polymer pipes is an extremely simple and quick assembly, which is achieved due to the manufacturability of the material, as well as the availability of fittings for all types of connections and connections
Polymer pipelines are laid both in open and hidden ways. It is simpler and faster to implement plasterboard communications after installation
Sewer system outlets are more convenient and wise to place in ceilings. For this purpose, concrete bases and a wooden flooring are suitable, between the elements of which a pipeline can be placed
All types of plumbing, well known to the city dweller, can be installed in a private house connected to centralized networks or equipped with autonomous systems
Connection to the sewer system is made according to the rules common to all residential and industrial facilities, regulated by SNiP 2.04.01-85 and an updated version of SP 30.13330.2012
For the normal operation of the system under construction, the acquisition of materials in the required quantity and to reduce unnecessary costs, a project should be made, or at least a diagram should be made
Interconnected Communication Systems
Sewer device made of polypropylene pipes
Water outlet locations on the wall
Wall covering with drywall pipes
Pouring concrete screed on the sewer
Using plumbing in a private house
Connecting the corrugation to the outlet into the sewer
Construction of the system according to the project
Arrangement of sewer outlet
To combine the internal and external parts of the sewage system, a unit called a discharge is mounted. He settles down in the foundation of the building, as a rule, still in the process of construction.
To do this, when laying the foundation, a hole is left in a certain place. Its diameter is equal to the cross section of the sleeve, which, in turn, is slightly larger than the diameter of the sewer pipe.
To equip the issue, a special sleeve is necessarily used, which is walled up in the foundation of the building
Typically, a pipe section is used for the sleeve, the cross section of which is 150-160 mm. It is important to choose the length of the element. It should protrude approximately 0.15 m on both sides of the foundation. A pipe is inserted inside the sleeve, to which an internal network is connected from the inside, and an external one from the other end.
An important point is the insulation of the structure. This procedure is performed to eliminate the possibility of freezing of the sewer.
A correctly selected sewer scheme of a country house, accurate measurements and calculations, high-quality materials and competent installation are the key to the effective operation of the future system.
However, some issues are difficult to figure out on your own. We offer a useful selection of videos on the arrangement of an autonomous sewer system of a private house.
When calculating the slope of the external sewage pipes, mistakes are often made. Check out the video that will help you navigate when developing a project and installing a pipeline:
The feasibility of insulation of external sewer networks:
A short lecture that explains the principle of the system, especially the choice of circuit:
Video materials on the ventilation system of the sewer system:
The first and most crucial stage of construction is design. The more detailed and more accurate the sewage system at home is developed, the easier the ready-made system will be in operation.
If it turns out that the conceived event is too complicated, you can always turn to professionals for help. They will complete the project and carry out installation work of any complexity.
Have you built a sewer for your house on your own project? Or are you just preparing a project and have any questions? Ask them under our article - our experts and other site visitors who own the information will try to help you. It is better to spend time and energy on clarifying the nuances than later to encounter problems. Effective autonomous sewage is not so difficult.