Construction of a septic tank from concrete rings diagram. Do-it-yourself septic tank made of concrete rings: diagrams and design. Construction of septic tanks from concrete rings

A modern country house is equipped with many technological benefits that were unavailable even a couple of decades ago and the functioning of which requires water. In addition to cooking and washing hands, there is at least a shower, a washing machine, and maybe also a dishwasher. For all these devices, it is necessary to establish not only the supply of clean water, but also the drainage of the resulting wastewater. This means that the usual level of convenience cannot be imagined without a modern device for treating household wastewater. When it is impossible to connect a house to a central collector, a septic tank made of reinforced concrete rings can be one of the few ways that allows you to properly process waste and prevent soil contamination.

View of a septic tank made of concrete rings in the courtyard of a private house Source mirhat.ru

How does a septic tank work?

For a small private house, a septic tank made of concrete rings is installed according to the classic scheme, including two tanks. If a significant volume of wastewater is expected, three tanks (wells) are installed, different in design and functionality. The first two wells are made hermetically sealed; in the third, a crushed stone filter is installed, through which the water flows into the soil.

The principle of constructing a septic tank made of concrete rings Source admiral-oz.ru

Purpose and design of cameras

• The first septic tank serves to receive and settle wastewater. Here, thanks to the work of anaerobic bacteria, sedimentation occurs and partial treatment of wastewater occurs (Anaerobic bacteria are able to decompose complex organic matter into simple substances without access to oxygen). The initially clarified water flows into the second section. The volume of the chamber should be equal to half of the total planned volume of the system; its base is concreted.
• In the second well (drainage) with sealed walls and bottom, additional filtration occurs. Additional filters made of gravel can be installed here.
• In the third well, final filtration occurs. The bottom here is not concreted; a sand-crushed stone (or sand) mixture is poured in for final filtration.

Advantages and disadvantages of a septic tank made of concrete rings

Due to the features of use, design and installation, such a system is the optimal solution in many cases.

Let's consider all the pros and cons of septic tanks made of concrete rings:

Its advantages include:

• simple installation and use technology. There is no need to supply electrical power, arrange additional drainage, or install a pump;
• reliable autonomous design with high mechanical strength;
• complete freedom in choosing the dimensions of the structure;
• long service life;
• large useful volume and easy maintenance;
• resistance to aggressive wastewater environment;
• the weight of the rings is a guarantee that groundwater will not displace the septic tank from the soil;
• available materials and reasonable price for building a septic tank.

Video description

Additionally, the septic tank can be improved - example in the video:

Disadvantages of concrete septic tanks:

• Weight of building material. During installation it is difficult to do without construction equipment.
• The need for high-quality sealing of seams between rings and joints with pipes.
• Hygroscopicity of concrete, which does not allow the method to be used in flooded areas.
• The need for regular cleaning of containers and pumping out wastewater.

Making the right calculations: capacity and design

At the design stage, a septic tank diagram is created from concrete rings, then the volume of the future device is determined:

Number of cameras

The number of cameras depends on the number of people using the sewer system. If a family actively uses the shower, bathtub, and appliances, the drain down the drain will be significant. The drains will require thorough cleaning, for which you will need a septic tank of three wells, two of which will be settling chambers.

Diagram of a septic tank made of concrete rings Source tolkobeton.ru

Capacity

To determine the volume of wastewater entering the septic tank from the kitchen, bathhouse and toilet, you need to calculate the daily water consumption. Knowing that the daily rate of domestic water consumption for one resident is equal to 200 liters, it is easy to calculate that a family of 4 people will fill the septic tank at a rate of 800 liters per day.

The quality of the septic tank improves if wastewater lingers in the chambers for a long enough time. By increasing the volume, you can improve the quality of the wastewater and protect the system from clogging with difficult-to-decompose fat.

According to building codes, the installation must accommodate wastewater that is generated over three days (the daily flow rate must be multiplied by 3). This number determines the volume of the septic tank and the number of chambers:

• a single-chamber septic tank is installed if daily waste does not exceed 1 cubic meter;
• two-chamber – up to 5 cubic meters;
• three-chamber – 8 or more cubic meters.

In a septic tank with two chambers, the first sump occupies the volume of 2/3 of the entire septic tank, in a three-chamber septic tank - half.

What to pay attention to before starting work

If the area has a high aquifer:

• The seams of the septic tank are carefully sealed, otherwise it will constantly be recharged with groundwater and overflow. There will be additional costs for calling a sewage disposal truck.
• The installation of a filtration well becomes meaningless; For additional treatment and drainage of water from the septic tank, another option is needed.

Video description

About septic tanks on high groundwater in the video:

Increased structural strength:

• To protect the building from possible ground movements and shifting of the rings, they are additionally secured with metal ties.
• To reduce the subsidence of the septic tank and improve its thermal insulation and drainage, during installation a cushion of sand, crushed stone or gravel is placed around it.

How much will the rings cost?

Concrete rings are selected based on calculations of the volume of the septic tank. The dimensions of concrete rings for a septic tank are indicated on the marking. They are characterized by the height, diameter and thickness of the walls of the structure, as well as the type of product:

• KS – wall ring, suitable for erecting walls;
• PP – floor slabs;
• PD – road slabs, installed at the bottom of the pit.

The cost of concrete rings is affected by their size and location of production. Reinforced concrete rings with low surface permeability, resistant to aggressive environments, are suitable for sewerage.

The height can be 290, 590, 800, 900 mm. A typical product with a height of 900 mm can have a diameter of 700, 800, 1000, 1500 and 2000 mm. The average price for it varies from 1200 to 1800 rubles. Rings with other parameters can cost from 680-1050 to 1500-2400 rubles.

Rings for septic tank Source humphrey.alpvd.ru

It should be remembered that some rings are marked with an internal (useful) diameter, while others have an external diameter, which is important for selecting caps. The average cost of a reinforced concrete cover or polymer hatch ranges from 1,700 to 2,000 rubles.

When drawing up an estimate for a septic tank made of concrete rings, the price takes into account additional materials: pipes, cement, sealant, as well as the cost of work (digging, installation of rings). The final average price of a turnkey septic tank is in the range from 38,000 to 69,000 rubles.

What other materials will you need?

In addition to the required number of reinforced concrete well rings and slabs with a hole for the hatch, additional materials are needed:

• sand, gravel, cement, crushed stone for the “pillow”;
• cement, liquid glass for sealing seams between rings;
• sealed (polymer) hatches;
• shovels, hammer drill;
• pipes and fittings.

Construction stages

Installation is carried out in the following order:

• A location is selected, an installation diagram is drawn up, and the parameters of the septic tank are calculated.
• A hole is dug.
• Rings are installed, pipes are supplied.
• Sealing and waterproofing work is being carried out.
• Floors are being installed.
• Backfilling is in progress.

Video description

The work procedure and installation of a septic tank made of concrete rings in the video:

How to choose the optimal location for a septic tank

The structure is mounted above the groundwater level. The best location is at the maximum distance from the house (at least 7 meters, but no more than 20, so as not to increase the cost of pipeline construction). It is logical to place the septic tank on the border of the site, next to the road. This will reduce operating costs, since the cost of leaving a sewage tank is affected by access to the system and the length of the hose. In addition, with the correct location, the sewage disposal truck does not need to enter the yard, and the hoses will not lie on the beds or paths (otherwise, when the hose is rolled up, waste may end up in the garden).

The distance to the nearest source of drinking water (well, borehole) is at least 30 (and if possible more) meters.

Pit preparation

Ground work using an excavator takes 2-3 hours. The size of the pit should be slightly larger than the dimensions of the wells. This is necessary for the smooth installation of the rings and their waterproofing. The bottom is covered with crushed stone and concreted.

Preparing a pit for a septic tank made of concrete rings Source rostovgruz.ru

Installation of rings and sewer pipes

Rings for a septic tank are installed using lifting equipment, which significantly saves time (when compared with manual installation). Fixation of the seams is ensured with cement mortar; additionally, metal ties (staples, plates) are installed.

Holes are punched in the rings and plastic overflow pipes are installed. They have a curved shape and work on the principle of a water seal.

The crucial moment is the process of installing rings Source remoskop.ru

Sealing and waterproofing

The seams of a septic tank made of concrete rings are sealed on both sides of the structure. For this purpose, cement and coating protective solutions are used. You can install ready-made plastic cylinders inside the well. This additional cost will make the system 100% sealed.

In the process of waterproofing concrete rings for a septic tank, the connections are treated with liquid glass, bitumen or polymer-based mastic, and concrete mixture. To prevent freezing (and destruction) of the structure in winter, it is recommended to insulate it with a layer of polystyrene foam.

Sealing joints and waterproofing septic tanks made of concrete rings Source zen.yandex.ru

Hatch installation and backfilling

The wells are covered with concrete slabs, with holes for hatches. In the first two wells, ventilation is installed, which is necessary for the removal of methane (gas appears as a result of the activity of anaerobic bacteria). To backfill the installed floors, use soil taken from the pit (backfill).

Backfilling of finished wells Source lanshaft.com

How to put a septic tank into operation

In order for the system to begin to function effectively, the constructed septic tank must be saturated with anaerobic microflora. The natural accumulation process takes several months, so it is accelerated by saturating the septic tank with imported microflora. You can do this in two ways:

• The new septic tank is filled with wastewater and left for 10-14 days. Then sludge sludge from an existing anaerobic septic tank is loaded into it (2 buckets per cubic meter).
• You can purchase ready-made bioactivators (bacterial strains) in the store (the main thing here is not to confuse them with aerobes, which are intended for other treatment systems).

Ready-to-start septic tank made of rings Source remont-book.com

What rules must be followed when servicing a septic tank?

There are simple rules that support the high-quality operation of the system.

1. Cleaning. Twice a year, in addition to cleaning the drains, the septic tank must be inspected and the pipelines cleaned. Once every 5 years (or better yet, every 2-3 years) the bottom heavy fats are removed. The volume of sludge should not exceed 25% of the tank volume. When cleaning, part of the sludge is left to restore the microflora.
2. Quality of work. The wastewater leaving the system must be 70% purified. Analysis of wastewater in the laboratory will determine the acidity indicator, which will allow you to find out the quality of the drainage system.
3. Security measures:

• Work inside the septic tank is allowed only after intensive ventilation and using a safety belt (gases formed inside can be dangerous to human life).
• Increased safety measures are required when working with power tools (humid environments).

A septic tank made of concrete rings makes private housing more autonomous and, despite its shortcomings, it is one of the most reliable and durable options for treatment facilities for suburban real estate.

Issues of waste disposal in suburban areas concern both summer residents and owners of private houses. Most dacha areas and many small settlements in the country are not provided with the ability to connect to centralized networks. It’s hard to come to terms with this situation, isn’t it?

A two-chamber septic tank made of concrete rings, the construction of which will require a minimum of money and effort, will allow you to get rid of problems. You can build such a system with your own hands without any problems. However, even if you plan to attract workers, it is simply necessary to know the rules and features of the device. After all, the structure must operate without failure.

We suggest that you familiarize yourself with reliable information about the construction of concrete septic tanks, the basics of designing an autonomous treatment plant and its organization. In addition to valuable information, we have selected photos, diagrams and video tutorials.

A septic tank, consisting of two chambers, is a practical treatment facility capable of processing organic waste.

The cleaning mechanism is based on the operation of two communicating compartments, inside of which the liquid component and the insoluble solid component are separated by settling.

Image gallery

If everything is clear with sewerage in the city, then what about its arrangement in the private sector or on a summer cottage? Fortunately, there is a solution. You can build a septic tank. Moreover, it can be made from various materials. And concrete rings are considered one of the most popular technologies for creating this structure.

Design and principle of operation

A septic tank is a structure designed to clean sewage that is formed as a result of the use of a bathtub, dishwasher and, of course, toilet. It is a structure made of several tanks connected by pipes at a certain height so that water entering the septic tank can flow from one chamber to another. Typically this structure has two or three chambers - their number often depends on the volume of drainage. In this case, as a rule, one of the sections of the septic tank is a filtration well, where an additional cleaning process takes place and the liquid is discharged into the environment.

The principle of operation of a three-chamber septic tank is as follows: wastewater, flowing through the drainage sewer pipe, enters the first chamber, where the primary stage of purification occurs - large inclusions, according to the laws of gravity, begin to settle to the bottom of the tank. Further, as the chamber is filled, partially purified water passes through a pipe located at a certain level (but located lower than the inlet pipe) into the next chamber - the secondary settling tank. There it settles further, and some of the lighter particles also have time to settle to the bottom.

On a note! Additionally, anaerobic bacteria can work to purify the water in the second purification chamber, which process pollutants. For them, this is their favorite “delicacy.”

The third chamber is a filtration well, which, unlike the previous two, has a bottom that is not sealed, but through, but covered with sand and crushed stone. The liquid begins to seep and go into the ground, further purifying itself in this layer. Such a septic tank, one might say, does not need, since the water goes into the soil layers on its own. But still, every few years it is necessary to remove sediment deposited at the bottom from it. Vacuum trucks are called for this purpose.

A septic tank consisting of two compartments works on the same principle, only the water after the first chamber immediately enters the drainage well and goes into the ground. By the way, soil purification can also be carried out on filtration fields or using biofilters, and not only in filter wells.

What are the benefits of septic tanks made from concrete rings?

One of the most common and inexpensive ways to build a septic tank with your own hands is to make it from concrete rings. Such rings come in different sizes, and can also have additional parameters - a certain thickness, the presence of holes in the walls, etc. In addition to these products, round bottoms and covers are also produced, in which a hole is provided for installing a hatch.

Table. Types of concrete rings.

A septic tank made of concrete rings is a time-tested design. But during installation you will have to work hard. Most likely, to install the rings in the pit prepared for the septic tank, you will have to call in special equipment - a truck crane. It is very difficult to move such structures on your own - they have considerable weight. There are, of course, options for installing and digging reinforced concrete rings into the ground without the use of machinery, but the problem is that the ring itself is, nevertheless, quite fragile. If such an element is dropped even from a small height, it can easily break.

The disadvantage of using concrete rings as the basis for a septic tank is the need for a large space. In a small area, it is unlikely that such a design will be implemented in compliance with all rules and regulations. Also, when building a septic tank from concrete rings, great attention should be paid to sealing seams and joints. "How does it happen? , you can look in our article.” The advantages of a septic tank made of reinforced concrete rings are as follows:

• these structures are not afraid of exposure to aggressive chemicals that enter the drain. And the waste water itself is far from having the most harmless composition;
• such a septic tank will not be afraid of temperature changes;
• the structure will cope perfectly with the unexpected influx of large volumes of water.

On a note! When choosing rings for a septic tank, it is best to choose those that have fittings inside. Such rings are much stronger than ordinary concrete ones and will last as long as possible.

We calculate the sizes

Calculating the dimensions of the future structure is an important point in the design of a structure. The parameters of the space occupied, as well as the amount of materials needed, will directly depend on this. The first step is to calculate the volume of the septic tank, which depends on the volume of wastewater, which, in turn, depends on water consumption. On average, a person uses about 200 liters of water during the day. This means that a family of three will spend 600 liters per day. However, according to the standards, the septic tank must be three times larger in volume. This means that it must contain at least 1800 m 3 of liquid.

Now we need to calculate the internal volume of one concrete ring. It is easier to figure it out using the formula for the volume of a cylinder. This V = 3.14*D 3 *H/4, where H is the height of the structure, D is its internal diameter, and V is the volume required for further calculations. Let's say the ring has a diameter of 1 m. Then its volume will be equal to 0.79 m 3. In this case, the height of the ring does not need to be measured - this is a standard value and is equal to 1 m. Although sometimes there are rings with a height of 0.9 m on sale. Additional rings can have very small dimensions.

Attention! When making calculations, it is important to remember that the last, upper ring should never be filled entirely with liquid, but only 1/3. Thus, the working volume of the upper ring is 0.79/3 = 0.26.

Based on the calculations described above, you can deduce the number of rings that need to be purchased. Thus, one section of the septic tank will need 3 rings. To build a structure of three chambers, 9 reinforced concrete rings will be required.

The rings that are sold in stores usually have standard sizes and can be of different diameters - 70, 100, 120, 150, 200 cm. If the sewer system will be built for a house where many people live, then it is better to use structures with a diameter of at least 100 cm For small families, you can purchase 70 cm rings. The larger the ring, the heavier it is, and therefore, to install a septic tank from products 100 cm or more in diameter, you will definitely have to call a truck crane, since the weight of these rings varies between 700-900 kg.

Advice! When making calculations, it is worth remembering that the upper ring should protrude above the ground by about 20-30 cm.

A good-quality septic tank made of concrete rings allows you to organize wastewater treatment up to 70%, but the percentage of treatment in it is lower than in high-tech biological stations (98%). Although such a system is several times cheaper, and its design is simpler. Why not use it to install a sewer system in your country house, right?

Do you want to build a septic tank on your own and don’t know where to start? We will help you understand in detail all the intricacies of this issue. The article examines in detail the structure of a concrete storage tank and detailed diagrams of its construction. As well as a step-by-step installation process, starting with the preparation of materials and ending with putting the system into operation.

The article is supplemented with visual photos and videos, which examine the nuances of the functioning of a septic tank and the process of constructing a two-chamber treatment plant.

Concrete rings are a good material for making sewer systems in private households. If the territory does not belong to environmental protection zones, then you can save on sewerage, since the cost of such a septic tank is half the price of purchasing a treatment station.

Before starting work, it is necessary to determine the type of soil on the site. The choice of filtration system depends on its characteristics, since the design of a septic tank made of concrete rings involves several containers. According to sanitary standards, water must be allowed to settle for three days or more before being discharged into the ground.

The type of soil can be determined by digging a hole, interviewing neighbors who own a well or well, or requesting information from an organization conducting construction or drilling near the site.

Image gallery

The number of rings can be determined by dividing the volume of the container by the volume of the ring. Their sizes come in small, medium and large.

For the calculation, the parameters of an average size ring will be used. KS-10-9 whose internal diameter is 1 m and height is 90. One ring has a volume of 700 cubic liters

For a family of two:

Volume of the first container = (200*2)*3= 1,200 liters.
Volume of the second and third containers = 1,200/3 = 400 liters.

Number of rings for two containers = (1200+400)/700= 4
Number of rings for three containers = (1200+400+400)/700= 5

Bottom line: 2 rings for the sump, 2 for the sedimentation tank and one for the drainage well.

For a family of three:

Volume of the first container = (200*3)*3= 1,800 liters.
Volume of the second and third containers = 1,800/3 = 600 liters.

Number of rings for two containers =(1,800+600)/700=4
Number of rings for three containers =(1 800+1200)/700= 6

Result: 2 rings for the sump, 2 for the sedimentation tank and two for the drainage well.

Septic system diagrams

Septic tank designs made from concrete rings assume the presence of one, two or three chambers where wastewater settles and is biologically processed.

All chambers are arranged with a monolithic bottom, cleaning is carried out by settling. The settled liquid is discharged into an infiltrator or filtration field for subsequent disposal into the ground.

Depending on the absorption capacity of the soil, you can choose several filtration options for constructing a septic tank made of concrete rings:

1. Septic system with .
2. Septic system with absorption well.
3. Septic system with filter cassette (infiltrator).

The most common filtration option is a drainage well. It is used when the soil has good absorption properties.

For ease of movement, running brackets are mounted inside the container. They are necessary for servicing the septic tank in case of blockages or depressurization.

The adjacent sedimentation tank is installed in the same manner. In both containers you need to make holes for sewer pipes and install them. The inlet for sewage should be located higher than the overflow pipe between the containers.

On top of the floors you need to install one small diameter concrete ring. This creates a small chamber that will isolate the container from cold air.

This completes the installation of a septic tank made of concrete rings, and the installation of a ventilation system follows.

Step #4 – installation of the ventilation system

Ventilation is necessary to allow air to enter the system, which ensures the normal functioning of microorganisms. They process domestic wastewater and remove the organic component. To ensure constant air circulation, two ventilation pipes are required.

Before building a private house, it is advisable to design a sewer system. An excellent solution to this problem is to build a septic tank from concrete rings with your own hands.

Septic tank made of reinforced concrete rings - advantages and disadvantages

The use of reinforced concrete rings as the basis for a septic tank has the following advantages:

• possibility of long-term operation (50-100 years);
• increased resistance to negative environmental influences;
• high strength comparable to natural stone. The design can withstand strong pressure, it is able to function even with large water discharges;
• when installing additional waterproofing, the septic tank made of reinforced concrete rings becomes completely sealed, groundwater cannot damage the structure;
• low cost, allowing you to significantly save on building a sewer system with your own hands. Installing a septic tank made of concrete rings will cost much less than installing an analogue made of polypropylene material.

However, there are certain disadvantages of such a system, which it is advisable to know about before starting construction. These include:

• the need to use special mechanisms or equipment for installation, because concrete is a fairly heavy material, which affects the weight of the structure;
• there is a possibility of runoff liquids entering the soil under the system. This happens due to the appearance of cracks in the concrete or a violation of the tightness of the joints after long-term operation of the sewer system or poor-quality sealing.

The principle of operation of a reinforced concrete septic tank

For not very large areas, a chamber type of design with a drainage or closed bottom is most often used. In the second option, an ordinary storage tank for waste liquids is obtained, and in the first, a cesspool system with drainage is obtained.

The principle of operation of a drainage septic tank with 3 compartments:

1. The waste liquids enter the initial compartment, where they are clarified, i.e. elimination of sediment of heavy elements.
2. Then the clarified sewage water penetrates into the next chamber. Fermentation occurs in it.
3. After this, the wastewater flows into the last compartment, where it is drained into the soil.

The processing efficiency in such a facility reaches 90%. The remaining 10% includes sludge residue, which will need to be removed several times a year using sewage disposal. A similar septic tank made of concrete rings, built with your own hands, is capable of treating a large volume of liquid. As a rule, if up to 5 people live in a building (2-story private house), then such a system will be sufficient.

When installing an additional compressor for a septic tank with a timer in the second chamber, the process of decomposition of biowaste will be significantly accelerated. Such a compressor provides a regular supply of air. Also, a pipe is installed in compartment 2 for ventilation; it should extend 70 cm above ground level.

Diagram, design structure

The most effective design is one with 3 separate chambers. Externally, the system is similar to VOC, which has separate compartments for storing wastewater and its subsequent filtration. Before starting installation work, you should know how a septic tank made of concrete rings is constructed.

A sewer system with a sealed bottom without drainage fills up quite quickly, so the owner of the site will often need to call a sludge pump for sewage removal. An installed septic tank made of concrete rings with a drainage base does not have this drawback.

Watch the video

Most of the incoming liquids are filtered into the ground on their own. Therefore, the need for sewerage services arises on average only 2 times a year to eliminate residual sludge.

Calculation of septic tank volume

Choosing a location for installation

To determine a suitable installation location, it is necessary to study the regulations and legal framework. It is prohibited to install a concrete septic tank or lay sewer branches in the immediate vicinity of residential buildings.

Watch the video - a septic tank made of concrete rings from A to Z

Before you start designing a septic tank, it is advisable to remember these rules:

• the presence of a driveway for a sewer truck;
• The septic tank should be placed at least 50 meters from a water source (for example, a well). This is necessary in order to reduce the likelihood of contamination of drinking water with waste;
• The sewer system should be located 5 meters from buildings. However, you should not make the distance more than 20 meters, because... because of this, additional costs will be required for laying sewer pipes;
• the pipe location scheme must be accompanied by a low groundwater level.

When designing a sewer system, it is also advisable to take care of creating ventilation for the septic tank.

What materials and tools will be needed

When selecting concrete rings for a septic tank, it is advisable to pay attention to options with locks. Such rings significantly simplify the installation process and also prevent displacement when freezing and increasing the volume of soil. When purchasing, it is advisable to check that the seats are level and also make sure that the locks are intact.

Trenches are also dug for laying the sewer pipeline; it must be located below the layer of freezing soil. Trench dimensions depend on the size of the reinforced concrete rings. In most cases they are about 1.5 m deep and 50 cm wide.

To ensure gravity flow of wastewater, the bottom must have a slope of 2-3 cm per linear meter. It is advisable to first calculate the distance between the end points; for this it is necessary to multiply the distance by the slope coefficient (it is determined by regulations).

After digging, the bottom should be well compacted and covered with sand 10 cm. Then it is concreted to a depth of 30 cm using cement mortar (3:1). There is no need to make a concrete bottom if a lower bottom ring is installed. Then it will be enough to pour a 20-centimeter cushion of crushed stone.

Installation of rings, installation of overflow pipes

First of all, install the bottom ring so that its walls are perpendicular to the bottom. Level installation will increase the strength, reliability and stability of the structure. When using a reinforced concrete ring without a bottom, a concrete screed is created. Its dimensions must exceed the annular diameter by 20 cm. The final formation of the screed may take up to 14 days.

Then install the first ring. This work cannot be done on your own, so you will need several people to help. After installation, the next ring is installed. To improve the fixation properties on the outside, special metal staples are used. Entry points are covered with concrete and insulation for safety.

Watch the video

Concrete rings for the septic tank are immersed into the pit using a construction crane. External voids are then filled with soil and sand. There is no need to rush; it is important to compact the soil evenly and alternate this with pouring water. Such backfill has shock-absorbing properties and is capable of draining storm and groundwater.

However, treated wastewater can leave not only through the bottom, but also through the side walls. If a similar design option is planned, then the reinforced concrete ring at the base should be perforated. The installation procedure for such a ring does not differ from conventional technology. The “pocket” between the outer walls and the ground is filled with crushed stone.

To create a filtration field, perforated pipes are used. They are placed on a layer of gravel and sand, which ensures the penetration of clean water into the ground. The top of the pipe must be covered with geological textiles and covered with soil.

Waste disposal

A filtration well is used to dispose of wastewater. If it is installed in places where there are pebbles, sand or crushed stone under the base of the structure, then the infiltration process will proceed without problems.

When deciding to make a septic tank with your own hands, it is better to install a three-chamber version. Then the last compartment will dispose of pre-purified waste liquids.

Thus, the construction of an autonomous sewer system with your own hands can be done quite quickly.

However, most likely, it will not be possible to carry out the construction completely independently, because... You will need to call workers to dig a trench or craftsmen with special equipment, and also find assistants to lay the rings. The large dimensions of the products will not allow you to install them yourself.

Watch the video

The procedure for installing a filtration well and laying pipes for overflow is not complicated and does not require professional equipment. Therefore, you can do it yourself.