In places where there is no centralized sewerage system, special sealed containers are used to solve the problem of collecting and storing domestic wastewater. They are also used in production as storage facilities for industrial and chemical waste.
This article will tell you about the features of the structure, installation and operation of sealed sewer tanks.
Most often, containers for sewage in order to save space on adjoining territory, as well as for reasons of aesthetics, are installed underground. Their size is in direct proportion to the estimated volume of wastewater and the planned frequency of emptying the tanks.
Usually, in all modern country or country houses there is a centralized water supply, therefore, the issue of disposal of used water and other sewage waste is very relevant. It is best to start the construction of the sewerage system at the stage of building a house.
By its structure, the sewer system in country house not much different from the one that works in city apartments. The only and main difference is that wastewater is not disposed of centrally, but on its own, privately.
In a private house, the most common sewerage solutions are:
Each of these methods of arranging the sewage system has its own characteristics. And, choosing the most suitable of them, one should take into account such nuances as the geological features of the area, the parameters of the land plot, the number of drains, as well as the number of residents of the house. Septic tank
Useful information ! Of the above methods, the most accessible and for a long time very popular among the population is the cesspool. However, from an environmental point of view, this is not the best way, since the stock masses from cesspool can partially seep into environment.
The installation of an autonomous sewage system (another name is a septic tank), in view of its high price, today not everyone can afford. Moreover, often one such capacity is not enough for a full-fledged sewage system. In addition, water purified in a septic tank after that needs additional purification in the drainage field.
LOK are miniature analogs of urban wastewater treatment plants. The water purified with their help is suitable for technical and irrigation work on the site. But this method of cleaning has its drawbacks - the high cost and dependence of the LOC on electricity.
If the house is located within the city limits or a level groundwater on the terrain is high, then in this case it is impossible to install treatment facilities for sewage. The way out in this situation will be the use of sealed containers for the sewage system. When installing such a container, it is important to choose a place for its location, which will be convenient for a sewage truck to drive up to for waste disposal.
Installation of a sealed storage tank - perfect solution for the arrangement of an autonomous sewer system private house. It allows you to reliably isolate waste and wastewater, thereby preventing them from entering the environment.
The disadvantage of such a sewage system is the need to empty it through the drain holes. The frequency with which it is necessary to repeat this procedure depends both on the volume of the reservoir itself and on the effluents entering it.
Advice! If 4-6 residents live in the house, then the optimal volume of sewage capacity for the needs of such a family will be equal to 10-12 m2.
In addition to this advice, it is also worth taking into account the individual needs of those living in the house (how much water per day is spent on bathing and other needs).
Cottages and other large houses, as a rule, need storage tanks from 5 to 15 thousand liters.
For ease of use, there are models sewer tanks equipped with a sensor that controls the filling. When the container is filled to a state close to full load, the sensor signals this.
Often, the sewerage system is one piece with the storage tank. A properly installed container can serve as a drain for your family for many years. The tank has two pipes, one for filling with waste water, the other for draining it.
Moving through the intake pipe, wastewater enters the storage tank, where it is subsequently stored. There is usually a maintenance port on the top of the container through which waste is pumped out as needed.
Video material. Installation of storage tank.
As a rule, the only type of maintenance that storage containers need is to empty them on time.
Today, many suburban settlements do not have a common sewage system, so you have to think about creating an individual treatment system. Not everyone can create their own system, it is not cheap, therefore, using the old method, they dig cesspools, lining them with bricks or making walls of iron concrete rings... But after all, instead of these structures, you can purchase a plastic container to use it for sewerage.
At first, enterprising owners used iron barrels or cisterns instead of brick structures, however, life time they were short-lived. Now this problem has been resolved with the advent of market relations, and manufacturers have appeared that produce plastic containers for sewage with high strength parameters, they are not very expensive and easy to install.
If there is no full-fledged sewage system, you can use an autonomous one, it can be presented in the form:
A cesspool, the walls of which are lined with bricks or concrete rings, and the bottom remains open. In this case, the liquid goes into the ground, and you need to clean the pit no more than once every few years. Advantages: will be inexpensive used as a temporary option. Disadvantages: persistent bad smell, defective utilization of fecal waters.
Sewerage storage tank - hermetic tank, accumulating waste life activity, which, as it is filled, is released with the help of public services. The material can be metal, plastic, fiberglass. The shape and volume can be any from 3 to 100 cubic meters m and more; tanks can be connected to each other to increase the total volume for sewage.
The advantages are undoubtedly:
The disadvantage is regular cleaning containers with the use of special equipment.
Mechanical septic tank representing closed system providing such a level of purification at which water can soak in the ground without the risk of contamination of the site. It can be made of concrete, metal, plastic.
The advantage of septic tanks is:
However, the disadvantage can be called:
A septic tank with biological filters that purifies the outlet water up to 98%. These septic tanks are expensive but the most efficient and can be located near buildings, do not require maintenance and function for a long period.
Sewerage tanks differ:
Requirements for containers:
It should be noted that plastic containers meet these requirements most fully, they are strong, durable, hermetically sealed, and easy to operate. The Germes-Plast-OC tanks are made of plastic with a volume of 3 to 100 cubic meters. m and the cost for a 2-meter dive from the surface of the earth - 60,300 - 1,553,500 rubles. respectively.
Glass storage tanks have a number of advantages:
Storage tanks can be combined to increase total volume waste liquids.
The cost of fiberglass storage tanks of the company Ecostroy under the sewage system lies in the range from 66400 to 181000 r. for products with a volume of 5-15 cubic meters. m respectively. However, according to individual order the company produces tanks up to 100 cubic meters. m.
Company ZhilKomSnab produces ribbed septic tanks, thanks to which the walls prevent compression by the soil.
Their cost depends on the volume and lies in the range of 18,900-44,000 rubles. for 1100-5000 liters, respectively.
The choice of storage tanks is huge, so as not to be mistaken, you need to remember that the consumption per 1 resident is 200 liters of water. Based on the number of people and the frequency of emptying the container, choose the volume of the product you need.
You can purchase a container equipped with a float to indicate the filling of the barrel.
The choice of material is also important for future use, it affects life time.
Of no small importance is type of soil on the site and the level of groundwater location relative to the surface, if it is equal to or higher than one meter , then you will need to purchase an additional well.
The advantages of storage tanks:
The disadvantage is the need regular cleaning with the use of special equipment.
Sewer tanks are used immediately after installation, for which special devices and tools are not needed, except for a pair of male, working hands, and a shovel to dig a hole for the container.
Choosing one or another container for the sewage system, decide for yourself an important question: what is more important for you- to save money or to provide a full-fledged disinfection of the site. After all, the best option is also possible, for small area it is possible to more fully purify waste, and for a large one it becomes less important. It is important to decide which is better - inexpensively buy the system or it service in the future. If you only use the summer cottage, the best option for you will be the acquisition of a storage tank made of plastic of the appropriate volume.
An urgent question that torments everyone who wants to live in private country houses without the ability to connect to a central water supply and sewerage system, how to do autonomous sewerage... Indeed, without it, it is not possible to fully use such benefits of civilization as a bath, shower, kitchen sink, washing machine and much more. Sewerage in a private house can be equipped different ways, which we will talk about in this article. Choosing the right system for your individual conditions and needs is even more important than implementing it.
The option of arranging a drainage system in private houses is selected depending on several conditions:
More detailed information about the requirements can be found in the relevant sections of SanPin and SNiP.
Conventionally, all sewage systems in a private house can be divided into just two types:
The most ancient, proven by centuries and even millennia, method of arranging a sewage system is a cesspool. Still some 50 - 70 years ago there was no alternative to this method. But at the same time, people did not use as much water in private homes as they do today.
A cesspool is a well without a bottom. The walls of the cesspool can be made of bricks, concrete rings, concrete or other material. Soil remains at the bottom. When drains from the house get into the pit, more or less pure water seeps into the soil, clearing. Fecal matter and other solid organic waste settle at the bottom, accumulating. Over time, the well fills up with solid waste, then it must be cleaned.
Previously, the walls of the cesspool were not made waterproof, then when filling the pit, they simply buried it and dug out a new one in another place.
I would like to note right away that a sewage system in a private house using a cesspool is possible only if the average daily volume of wastewater is less than 1 m3. In this case, soil microorganisms that live in the soil and feed on organic matter have time to process the water that penetrates into the soil through the bottom of the pit. If the volume of effluent is more than this norm, the water does not undergo sufficient purification, penetrates into the soil and pollutes the groundwater. This is fraught with the fact that wells and other water sources can be contaminated within a radius of 50 m. The addition of microorganisms to the cesspool somewhat reduces the unpleasant odor emanating from it, and also speeds up the process of water purification. But, nevertheless, it is not worth the risk.
Output... A cesspool without a bottom can be built if the house is visited 2 - 3 days a week and does not consume a lot of water. At the same time, the groundwater level must be at least 1 m below the bottom of the pit, otherwise contamination of the soil and the water source cannot be avoided. Despite the lowest cost of arrangement, the cesspool is not popular in modern country houses and cottages.
An airtight container is installed on the site near the house, into which sewage and waste from all over the house flow through pipes. This container can be off-the-shelf, store-bought, and made of plastic, metal, or other material. Or it can be mounted independently from concrete rings, the bottom is made of concrete, and the cover is made of metal. The main condition for installing a sewage system in a private house of this type is complete tightness. Pragma corrugated pipes are suitable for sewerage.
When the container is full, it must be emptied. To do this, a cesspool machine is called, the call of which costs from 15 to 30 USD. The frequency of emptying the container, as well as the required volume, depends on the amount of waste. For example, if 4 people permanently live in the house, use a bathroom, shower, sink, toilet, washing machine, then the minimum volume of the storage tank should be 8 m3, it will have to be cleaned every 10-13 days.
Output... A sealed cesspool is one of the options for how you can carry out sewerage in a private house if the groundwater level in the area is high. This will completely protect the soil and water sources from possible pollution. The disadvantage of such a sewage system is that you will often have to call a sewer truck. To do this, from the very beginning, it is necessary to correctly calculate the place of installation of the tank in order to provide a convenient access to it. The bottom of the pit or container should not be deeper than 3 m from the soil surface, otherwise the cleaning hose will not reach the bottom. The lid of the container must be insulated to protect the pipeline from freezing. For a similar sewage system in a private house, the cost depends on the material of the container. The cheapest option would be to purchase second-hand eurocubes, the most expensive is concrete filling or brick. In addition, monthly cleaning costs.
A single-chamber septic tank has not gone far from the cesspool, very often it is called that. It is a well, at the bottom of which crushed stone is filled with a layer of at least 30 cm, and on top of coarse sand with the same layer. Wastewater flows through pipes into a well, where water, seeping through a layer of sand, gravel, and then the soil, is cleared by 50%. Adding sand and gravel improves the quality of water purification and partially faeces, but does not fundamentally solve the problem.
Output... Conducting sewerage in a private house using a single-chamber septic tank is impossible with permanent residence and large volumes of drains. Only for houses with temporary residence and low water table. After a while, crushed stone and sand will need to be completely replaced, as they will silt.
As one of the economical options for sewerage, which can be assembled independently, the arrangement of overflow settling wells and filtering wells is popular everywhere.
This sewerage system in a private house consists of two wells: one with a sealed bottom, the second without a bottom, but with powders, as in the previous method (crushed stone and sand). Waste water from the house enters the first well, where solid organic waste and feces sink to the bottom, fatty ones float to the surface, and more or less clarified water is formed between them. At a height of about 2/3 of the first well, it is connected to the second well by an overflow pipe, located slightly at an angle so that water can drain there without hindrance. Partially clarified water enters the second well, where it seeps through the powder of crushed stone, sand and soil, is purified even more and leaves.
The first well is a sump, and the second is a filter well. Over time, a critical mass of faeces accumulates in the first well, for the removal of which it is necessary to call a sewer truck. This will have to be done about once every 4 to 6 months. To reduce the unpleasant odor, microorganisms are added to the first well, which decompose the feces.
Overflow sewerage in a private house: photo - example
A two-chamber septic tank can be made independently from concrete rings, concrete or brick, or you can purchase a ready-made (plastic) one from the manufacturer. In the finished two-chamber septic tank, additional cleaning will take place with the help of special microorganisms.
Output... It is possible to install a sewerage system in a private house from two overflow wells only if the groundwater level, even in a flood, is 1 m lower from the bottom of the second well. Ideal conditions is sandy or sandy loam soil on the site. After 5 years, the crushed stone and sand in the filter well will have to be replaced.
We turn to the description of more or less serious cleaning systems that allow you not to worry about environmental pollution.
This type of septic tank is one container, divided into 2 - 3 sections or several separate well containers connected by pipes. Most often, having decided to equip just this type of sewage, a factory-made septic tank is purchased.
In the first tank, wastewater settles, as in the previous method (settling well). Through the pipe, partially clarified water enters a second container or section, where anaerobic bacteria decompose organic residues. Even more clarified water enters the filtration fields.
Filtration fields represent the area underground where wastewater passes soil cleaning... Thanks to the large area (about 30 m2), the water is 80% purified. An ideal case if the soil is sandy or sandy loam, otherwise it will be necessary to equip an artificial filtration field from rubble and sand. After passing through the filtration fields, water is collected in pipelines and discharged into drainage ditches or wells. No trees or edible vegetables should be planted above the filtration fields, only a flower bed is allowed.
Over time, the fields become silted up, and they need to be cleaned, or rather replaced by gravel and sand. You can imagine how much work will have to be done, and what your site will turn into after that.
Output... Laying a sewage system in a private house, assuming the presence of a filtration field, is possible only if the groundwater level is below 2.5 - 3 m.Otherwise, this is a rather constructive solution, provided there is sufficient free space... Also, do not forget that the distance from the filtration fields to water sources and residential buildings should be more than 30 m.
The deep cleaning station allows you to complete the installation of a sewage system in a private house, even if the groundwater level is very high.
The septic tank is a container divided into 3 - 4 sections. It is better to purchase it from a trusted manufacturer, having previously consulted with professionals about the required volume and equipment. Of course, the price for such a sewage system in a private house is not the lowest, it starts from $ 1200.
In the first chamber of the septic tank, water settles, in the second - the decomposition of organic matter by anaerobic microorganisms, the third chamber serves to separate water, since in the fourth, organic decomposition takes place with the help of aerobic bacteria, which need a constant flow of air. To do this, a pipe is mounted above the chamber, which rises 50 cm above the ground level. Aerobic bacteria are added to a filter mounted on a pipe leading from the third section to the fourth. In fact, this is the filtration field - only in miniature and concentrated. Due to the small area of water movement and the high concentration of microorganisms, the water is thoroughly purified up to 90 - 95%. Such water can be safely used for technical needs - watering a garden, washing a car and much more. To do this, a pipe is diverted from their fourth section, leading either to a tank for storing purified water, or to a drainage ditch or well, where it is simply absorbed into the ground.
Sewerage system in a private house - scheme of work:
Output... Septic tank with biofilter - good decision for a private house with permanent residence. Microorganisms can be added to a septic tank by simply pouring them down the toilet. There are no restrictions on the use of such a treatment plant. The indisputable advantage is that it does not require electricity supply. The only drawback is that sewerage wiring in a private house requires permanent residence, since without the constant arrival of wastewater, bacteria die. When new strains are added, they begin to be active only after two weeks.
An accelerated cleaning station where natural processes occur artificially. The construction of a sewerage system in a private house using an aeration tank will require supplying electricity to a septic tank to connect an air pump and an air distributor.
Such a septic tank consists of three chambers or separate containers connected to each other. Water enters the first chamber through the sewer pipes, where it settles, and solid waste precipitates. Partially clarified water from the first chamber is pumped into the second.
The second chamber is actually an aeration tank, here water is mixed with activated sludge, which consists of microorganisms and plants. All microorganisms and bacteria of activated sludge are aerobic. It is for their full-fledged life that forced aeration is needed.
The water mixed with sludge enters the third chamber - a sump for deeper cleaning. Then the sludge is pumped back into the aeration tank with a special pump.
Forced air supply provides a fairly quick treatment of wastewater, which can then be used for technical needs.
Output... An aeration tank is an expensive pleasure, but a necessary pleasure in some cases. The price starts at $ 3700. There are no restrictions on the installation of such a sewage system. Disadvantages - the need for electricity and constant living, otherwise the activated sludge bacteria will die.
Certain restrictions apply to the location of sewage facilities.
Septic tank should be located:
House must be remote:
The pipes leading to the septic tank must be insulated so that they do not freeze in winter. To do this, they are wrapped with heat-insulating material and inserted into asbestos-cement pipes. External sewerage wiring in a private house is carried out with pipes with a diameter of 100 - 110 mm, the slope should be 2 cm by 2 m, i.e. 2 °, in practice they do a little more - 5 - 7 ° (with a margin). But you should not joke with this matter, since a larger slope will lead to the fact that water will quickly pass through the pipes, and feces will linger and clog them, and a smaller angle of inclination will not ensure the movement of wastewater through the pipes at all. It is advisable to lay the pipes so that there are no turns and corners. For internal wiring of sewer pipes, a diameter of 50 mm is sufficient. If the house has more than one floor, and baths, sinks, and a toilet are also installed on the upper floors, then a riser with a diameter of 200 mm is used to drain the wastewater down.
If you decide that the sewerage system of a private house with your own hands is within your reach, be sure to take into account all the restrictions of SanPin and SNiP concerning the location and design of the sewerage system. In order not to spoil relations with neighbors, consider the location of their water sources and other buildings.
A private house sewerage project is extremely important; you should not try to do without it. Sewerage is not a system that tolerates approximation. Contact design bureaus or architects, let the professionals create a working project for you, taking into account all the characteristics of the soil, site, climate and operating conditions. It is better if this project is completed together with the project of the house itself before the start of its construction. This will greatly facilitate installation.
If you are interested in the question of how to make a sewerage system in a private house with a high level of groundwater, then based on all of the above, these may be the following options:
The direct work of installing the sewer system in a private house is not so difficult. It is necessary to spread pipes around the house that will collect wastewater from different sources, connect them to a collector and run through the foundation or under it along the ground to the septic tank. Excavation work can be done independently, or you can hire an excavator. But choosing the right sewage system and drawing up a project is much more important.
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Because of this, the size of the cesspool is limited, it is permissible to use metal barrels only on summer cottages, where it is not planned to live permanently, and the amount of drains will be small. A small sewerage tank would be out of place in a home with several residents.
The main advantage metal containers- this is high strength, due to which they can withstand serious mechanical stress.
However, they have much more disadvantages, which is why their use is limited:
Advantages of barrels made of polymer materials:
However, such containers also have a significant drawback - despite their large volume, their weight is insignificant. For this reason, the reservoir can be pushed to the surface under the influence of groundwater or frost heaving of the soil. Therefore, the construction of a septic tank requires that the tank for the sewage system be well fixed.
A plastic barrel for the sewer is installed in a pre-prepared foundation pit; its dimensions must be larger than the tank. Thanks to this, if necessary, it will be possible to insulate the structure and securely fix the barrel. The depth of the pit must be such that the inlet and the inlet sewage pipe were on the same level.
How to bury a barrel under the sewer, procedure:
Sewerage from barrels with your own hands is created quite simply, which makes it possible to save on the services of specialists. In the event that the barrel was securely fixed, and all installation requirements were followed, including the manufacturer's recommendations, then the container can last for several decades.
Suburban ownership is not considered perfect enough for a comfortable stay if it is not equipped with a system for draining and recycling water used for household needs.
By and large, this is a simple sewerage tank in a private house, equipped with a whole range of devices for sewage treatment.
The ancestor of such structures is a simple cesspool, the arrangement of which is prohibited on the sites, but they can still be found in operation.
The task of processing waste water is not only in their accumulation and periodic pumping out, cesspools can also cope with this.
The liquid must be cleaned of harmful impurities and pathogenic bacteria, since it is dirty and contaminated water that is the source of serious diseases and even epidemics. Therefore, most of the residents of private houses are striving to build an autonomous septic tank.
The most suitable for this purpose are plastic containers specially produced for septic tanks.
Reservoirs used as storage for waste water generated during their use serve to store the liquid until it is filled. After that, it is pumped out by a specially equipped sewage machine - a sludge pump and taken out for processing to a specially equipped place.
Plastic tanks for sewerage in a private house are of various types:
Containers made of plastic are always made with ribbed walls, which increases their strength characteristics and does not allow deformation when filled with liquid.
The main materials for the manufacture of such tanks are polyvinyl chloride (PVC) or polypropylene... But more durable are vessels made of composite materials, in which fiberglass or carbon reinforcing fibers are introduced. But such products are more expensive.
The volumes of plastic tanks for septic tanks are very diverse; the market offers vessels with a capacity from 500 liters to 100 tons in horizontal and vertical design... This makes it possible to choose the method of installing the tank, depending on the availability of free space on the site.
Before buying a container for a private house, you need to decide exactly on the final purpose of its installation. This takes into account the number of residents. For a family of two or three people, the storage capacity is quite enough, and for a suburban private house with five or more people living, it will be necessary to install a local treatment system (VOC).
Before purchasing a reservoir, you should understand the strengths and weaknesses of its use. The positive qualities include:
In accordance with the SanPiN rules, pumping out of storage tanks is carried out at least twice a year.
A lightweight plastic tank can be installed even by one person, but the same property is also negative point- the vessel may float at a high level of groundwater at the installation site,. Therefore, when installing such a system, an anchor plate made of solid concrete must be used. The container is attached to it with steel cables or strips on anchor bolts.
The disadvantages include the following points.
Plastic products are produced quite durable, especially if it is a fiberglass-reinforced option. But the material is fragile and afraid of impacts, which requires special care during installation.
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In order to choose the right vessel for a septic tank in a private country house, a number of circumstances must be taken into account:
It should be noted that a resident of a private house, as a rule, is not limited to installing a storage tank. Typically, a storage barrel is only the first link in the creation of your own wastewater treatment system.
Further, a tank is installed for biochemical treatment of effluents, which greatly accelerates the process of decomposition of harmful components, increasing the throughput of the installation. Cultures of aerobic and anaerobic bacteria are sold in abundance at specialized stores and are not difficult to obtain.
In addition, as a process of additional oxidation of effluents. The waste water treated in this way is 95-98% free of impurities and becomes suitable for use for technical purposes - for watering a vegetable garden or washing a car. If necessary, such water can be released directly onto the ground, where it undergoes additional purification.
The content of the VOC system can be pumped out once every 2-5 years, depending on the amount of accumulated sludge, which inhibits the filtration rate.
Local treatment facilities, consisting of several chambers, can radically purify water in wastewater. Each of them has its own processes that make it possible not only to maximally purify water from harmful impurities, but also to significantly increase the rate of waste processing. This allows the use of smaller containers, which saves on purchase and installation costs.
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The dimensions of the sewerage tanks in a private house of permanent residence should be very significant. As we have already counted, even three people organize up to half a ton of drains per day.
Consequently, even with a 5 cubic meter drive, it is impossible to do without pumping it out every ten days. And this is already a lot of money, one such operation costs at least 12 thousand rubles.
Therefore, multistage wastewater treatment technologies are used so that they can be disposed of directly at the place of residence. This imposes on the user additional responsibility not only in relation to himself, but also to the people living nearby.
Improvement of wastewater treatment methods makes it possible to do without pumping out the liquid at all. After passing through the station, it can be drained to the ground without consequences for the final additional filtering when passing through the ground.
It should be noted that this cleaning method is not used on clay substrates, since they are usually waterproof.
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In addition, 20% of the volume is deducted from the size of the first storage tank, taking into account the layer of sludge accumulated at the bottom. The fact is that in this container the main separation into solid and liquid components takes place.
In accordance with the requirements of SNiPs, the volume of water consumption by one person is about 200 liters per day... And the septic tank must hold at least three times the supply of liquid. It is easy to determine the total water consumption in a country house; it is 2.4 cubic meters for a family of four.
At the same time, according to sanitary standards, the filtration process in wells should take place for at least 14 days, which allows for normal wastewater treatment.
It is easy to make sure that for a family of four, the estimated size of the required volume will be 11.2 cubic meters. Of course, no one builds such septic tanks for the sewerage of a private house, using methods to increase the cleaning performance.
As you can see, the costs of wastewater treatment can be very significant, but this is not the case when it makes sense to save on them. There are quite enough substances in wastewater that are decomposed by the use of bacterial agents.
IT'S IMPORTANT TO KNOW! These are heavy fats that sink to the bottom and gradually mix with silt deposits. To remove them, it is advisable to use special filters that work with pumps, thus increasing energy consumption. But security comes at a premium.
The cost of septic tanks has a wide range, due to the variety of designs and the difference in product configurations. Containers of the same volume can vary significantly in cost. But, if we take average values, then we can focus on the following figures:
The given data correspond to the price list of the company "Anion" for plastic products.
Fiberglass products from Germes-Plast OC cost 60300 for a three-cube container, 78900 for a five-cube container, 124100 for a six-cube container.
The prices quoted do not include delivery to the place of installation and the installation of the system itself.
The largest part of the cost of installing a septic tank falls on the performance of earthworks, since the container is completely buried in the ground. It is necessary to control that at the beginning of the process an anchor plate made of concrete is installed at the bottom of the pit, so that the container does not float to the surface during floods or a significant rise in groundwater.
The distance from the house to the septic tank should be. Slope connecting pipes should be 1-2 millimeters per meter of length. Reliable tightness of the joints is important to prevent the leakage of waste water into the ground.
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A very important event is a preliminary survey of the soil base. The design of the septic tank largely depends on the quality of the substrate bases. So, in the presence of a clay substrate with practically zero filtering capacity, only infiltrates in the form of filtering fields are used to discharge the purified liquid.
If the seasonal height of groundwater rise is more than 2 meters, then only the discharge of treated wastewater directly onto the ground is possible. The lift height can be determined by the maximum water level in nearby wells and wells.
The quality indicators of soils are determined by drilling an exploration well.
The specificity of the sewage system in a private house is that it is active. This means that initiated processes of content processing take place in it in order to obtain a certain result - the neutralization of effluents. This is facilitated by plastic containers for sewerage in a country house.
In this regard, the main rule for maintaining the sewer system is the purity of the contents of the effluent in relation to agents that interfere with the work or simply destroy the environment of anaerobic and aerobic bacteria.
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The following can be disposed of through the sewer:
Septic tank maintenance activities include the mandatory restoration of the bacterial environment by adding pure cultures about once every two weeks. Repair and cleaning of silt deposits is carried out as they accumulate.
