Sewerage in the country with their own hands

To life in the country was comfortable, it is necessary to hold the main communications - water supply and sewage. In suburban areas often there is no centralized sewer network, so every owner of the house solves the problem on their own. Periodic use of the dwelling does not require installation of expensive and complex equipment, it is enough to arrange a septic tank.

Often, in the dachas the function of collecting waste is performed by the cesspool. If the house is not equipped with a plumbing system, this option is quite justified, but with the installation of sanitary devices and a large amount of drained water, it is not enough. In this article we will talk about how to make sewers in the country with their own hands in various ways (from concrete rings, barrels, without pumping out), and also show diagrams, drawings, photos and video instructions.

Sewerage should be built according to the developed project, which includes external and internal wiring diagrams.

The sewage system inside the dacha includes in its system the places where sanitary fittings are connected (sinks, shower stall, toilet, bathtub), highways and risers, it ends with an outlet branch pipe located near the basement.

The external network consists of pipes diverting drains from the building and a sewage treatment or accumulation facility. After preparing the project, you can calculate the size of the pipes, the amount of material for work, choose the type of sewer.

Acquaintance with the regulatory documents will help to understand how to make the sewer in the country correctly and to avoid mistakes in the design. The diameter of the pipes is chosen in accordance with the system's throughput, the small size will not cope with a significant amount of waste, and the large will require extra cash.

Choosing a place under the septic tank

The location of the septic tank is influenced by several factors:

• the relief of the site, the movement of water is carried out by gravity, so it is important to consider the slope;
• groundwater depth;
• mark of freezing in winter;
• the location of the drinking water supply or water source;
• The composition of the soil - sandy soil easily passes the liquid, so it can provoke contamination of groundwater.

Installing a septic tank requires compliance with certain conditions: the distance from the house should be at least 5 meters, the distance from the drinking well - 30 meters, from green spaces - 3 meters. The place is equipped with the possibility of arrival aspenizatorskoy machine.

Works on the device of the internal sewerage

Having the layout of all points of the system, and having purchased the necessary material, you can proceed to its installation. The first is installed central riser. Its diameter is selected about 110 mm, and for the discharge of gases the upper part protrudes above the roof level or is displayed in the attic. Pipes of two types are used:

• PVC - the material is chemically resistant, is not subject to corrosion and overgrowing, the smooth inner surface allows the sewage to pass freely, and the installation is done by the socket method. PVC prices are quite affordable.
• Cast iron - reliable and durable, but have a large mass and difficult to install. The cost of such pipes is significantly higher than plastic.
• Ceramic - have excellent characteristics, but are expensive.

After installation of the main tower, located 4 meters from the windows, lay horizontal pipelines. The ability to monitor the status of pipes and perform cleaning provide inspection hatches, which are located above the toilet and at the lowest point of the system. When installing pipes, avoid turning at a 90 degree angle, which makes it difficult to move the drains.

Each sanitary device in its device must have a siphon with a water seal that prevents the penetration of an unpleasant odor into the room. The pipe from the toilet bowl is connected directly, with a pipe at least 100 mm in diameter.

If you need a device to rotate 90 degrees, then it is implemented using two angular elements of 45 degrees.

To connect the sink and bath tub enough with a diameter of 50 mm. Highways should be positioned at an angle to ensure the movement of water. The sewage device at the dacha provides for the preliminary preparation of a hole in the foundation for bringing the sewer pipe to the outside. At the output, a check valve must be installed, which does not allow wastewater to flow back.

General rules on SNiP

1. At installation pipes from one material are used.
2. The pipeline must be airtight.
3. The connection of the highway with the riser is performed with an oblique cross or tee.
4. The slope of the pipe O 110 mm is 20 mm, the size of 50 mm - 30 mm per linear meter.
5. For country houses uses free-flow sewage, the movement of wastewater occurs by gravity.
6. A hidden installation of pipes is allowed, and the connection to the main riser should be open.

Septic tank device

In the absence of the possibility to connect the internal sewage of the dacha to the central one, a septic tank is installed. This device is designed to collect and purify wastewater. Septic tanks differ in construction, material and method of cleaning. Before you spend the sewer in the country, you must decide on the choice of sink sinks. For the device of septic tanks use: plastic or metal tanks, bricklaying, reinforced concrete structures. The treatment of polluted waters is carried out through soil filtration, biological treatment, or drains accumulate and are pumped off by a sewage disposal machine.

The easiest way is to install an airtight container in which wastewater accumulates, after filling it is pumped out with special equipment. The disadvantage of this method is the significant cost of regular ordering of services of vacuum trucks.

A more complex device has a septic tank that can partially clean the drains. On sale will find several options for such a device, but their price is quite high. With a little knowledge and desire to save money, you can make a septic tank yourself.

Two-chamber septic tank

The most convenient is the installation of a collector of two chambers connected by an overflow pipe. Find out how to arrange it yourself.

1. Work begins with digging a pit in a place selected taking into account all sanitary requirements. The volume of construction depends on the number of people living in the country. You can dig a pit manually or with an excavator.
2. At the bottom of the pit a sand cushion forms up to a height of 15 cm. The depth of the pit is 3 meters.
3. It is necessary to install a formwork of boards or chipboard. The design must be reliable. Next, a reinforcing belt is formed of metal rods tied with steel wire.
4. In the formwork, you need to make two holes and insert a trim pipe. These will be places under the entrance of the sewer line and overflow pipe between the sections.
5. The formwork is poured with concrete, which is distributed over the entire volume with the help of a vibrotool. The construction of the septic tank should be monolithic, so it is advisable to fill the entire formwork at a time.
6. In the first compartment, the bottom is poured with concrete, an airtight section is formed, it will serve as a settling tank. Here, the wastewater will be divided into solid coarse fractions, flowing to the bottom, and clarified water flowing into the next section. For the best decomposition of solid residues can be purchased aerobic bacteria.
7. The second compartment is made without a bottom, it can be made not only from monolithic walls, but also using concrete rings with a diameter of 1-1.5 meters, stacked on each other. The bottom of the well is covered with a thick layer of sediment (crushed stone, pebbles, gravel) to filter the effluent.
8. Between the two sections fit the overflow pipe. It is installed at a slope of 30 mm per linear meter. The height of the pipe is located in the upper third of the wells. The number of sections is not necessarily limited to two, it is possible to make a four-section septic tank that provides better cleaning.
9. The overlapping of the septic tank is made independently, with the help of formwork and concrete or ready-made reinforced concrete slabs are used. Be sure to arrange the hatch, allowing you to control the filling sections and hood. The pit is filled with sand and selected soil. Purification of the sump of such a system will occur every 2-3 years.

Due to the ease of installation, many gardeners prefer to make a septic tank of concrete rings.

If the soil in the area is clay or ground water is located very close to the surface, it will not work to arrange a septic tank of this design. You can stay on a sealed container of sufficient volume, securely installed and fixed to the concrete slab in the pit.

Another option is a biological treatment station. Local stations are convenient and efficient, they are indispensable for country buildings of a large area. The installation and start-up of the device are done by specialists, the cost of such a station is acceptable for a narrow circle of summer residents.

External gasket

From the place of the sewer outlet from the house to the septic tank is necessary to lay the pipeline. The line should lie on a slope providing drainage of polluted water. The larger diameter pipes you use, the smaller the angle of inclination is required for their operation, on average it is 2 degrees. The depth of the pipe laying trench must be greater than the amount of winter soil freezing. If the depth of the trench is small, insulate the trunk.

The average depth for laying the sewage system is 1 meter, in warm regions it is enough to drop 70 cm, and in cold areas you will need to dig a pit to 1, 5 meters. The bottom of the dug pit is filled with a thick pillow of compacted sand. This procedure will protect the pipes against ground movement.

The best option would be to lay a direct pipeline to the collector. If necessary, make a turn, this place is equipped with a manhole. Plastic and cast-iron pipes with a diameter of 110 mm can be used for the line, their connection should be tight. After installation, the pipeline is filled with sand and then with soil.

Septic tank without pumping

The design, which does not require regular pumping of wastewater, consists of several tanks operating simultaneously. It can be two / three-chamber septic tanks. The first tank is used as a sump. He is the largest in volume. In the two-chamber septic tanks the settler takes? designs, and in three-chamber? Here the pre-treatment of wastewaters takes place: the heavy fractions settle, and the lungs are poured into the next compartment as the first is filled. In the last part of the septic tank passes the final purification of wastewater. Then the water is directed to the filtration fields / drainage well.

The first 2 compartments must be sealed. In the last chamber there are holes in the walls / bottom. Thus, purified water seeps into the ground, which helps to avoid systematically pumping out waste without causing irreparable harm to the soil.

It is worth considering that in wastewater, in addition to organic matter, there are insoluble impurities. In view of this, such a structure will also have to be periodically pumped out in order to get rid of the sediment accumulating in the sump. This can be done with a fecal / drainage pump. The frequency of maintenance of a septic tank depends entirely on the size / volume / composition of wastewater.

Sizing

For self-construction of such a septic tank you need to correctly calculate its volume. It depends on the water consumption of your household. The rate of water consumption per person is 200 liters per day. So, multiplying this amount by the number of households, you get the daily rate of water consumption in the house. To the resulting figure, add another 20%.

18 m³. В таком случае вам нужен септик, имеющий глубину и длину по 3 м, а ширину – 2 м. умножив все стороны у вас получится 18 m³. The minimum distance from the bottom of the septic tank to the drain pipe is 0.8 m.

Cleaning systems

The advantage of the treatment system is that the sediment is processed by anaerobic bacteria, as a result of which it settles to the bottom in a much smaller volume. Gradually, this sediment compacted and rises. When the sludge reaches the overflow level, the septic tank must be cleaned immediately. Resort to clean the septic tank should be quite rare. This is due to the fact that the volume of sludge in 6 months will be from 60 to 90 liters.

Volatile septic tanks have built-in pumping units. Non-volatile counterparts should be cleaned by hand or using assenizatorsky equipment.

However, not too long ago, biopreparations with special enzymes appeared, processing sludge into acid, and then into methane and carbon dioxide. To remove these gases, you just need to install ventilation in the septic tank. Thus, your septic tank will become completely waste-free, safe and non-volatile sewage treatment plant.

Bacteria need to be "fed" with oxygen for greater efficiency of their work. Capacities for a septic tank can be bought or made independently.

Installing a finished septic tank

Before installing the finished construction of a septic tank, it is necessary to determine a suitable place for this. The minimum distance between the septic tank and the house is 5 m. The sewage pipes leaving the house should be directed directly to the septic tank. Turning the pipeline is best avoided, because exactly in such places are blockages.

A septic tank should not be installed near trees, as their roots can damage the integrity of the hull. The depth of the septic tank and sewer pipes is directly dependent on the level of soil freezing.

If the groundwater is close to the surface, then strengthen the bottom of the foundation pit with a concrete slab / screed. The dimensions of the pit will depend on the size of the septic tank. If you have to install a compact structure, then dig a hole easier to manually save money.

The pit should be slightly wider than the septic tank. The gaps between the walls and the ground should be at least 20 cm, and preferably more. If there is no need to reinforce the bottom, then all the same it is necessary to lay a sand cushion 15 cm thick (meaning the thickness of the rammed sand).

The upper part of the septic tank should rise above the ground. Otherwise, the meltwater will flood the device’s equipment in the spring.

After the device of the foundation pit, lower it into a septic tank. This can be done with the help of cables placed in the ribs of the septic tank. In this case, you can not do without an assistant. Next, connect the device to the communications, pre-digging trenches for pipes, laying a sand pillow and installing pipes. They should be laid under a small slope - 1–2 cm per each running meter. Pipe laying is carried out at a depth of approximately 70–80 cm.

Septic should be set strictly on the level. In a horizontal position, it will work better.

To connect the sewage pipe to the septic tank, it should make a hole of the appropriate diameter. This is done according to the instructions to the cleaning system. After that, you need to weld the pipe to the hole. To solve this problem, you will need a polypropylene cord and a hair dryer. When the pipe is cooled, it will be possible to insert a sewer pipe.

If you connect a volatile septic tank, then after these actions you need to connect the electrical cable. It is carried out from the shield to a separate machine. It must be laid in a special corrugated pipe and placed in the same trench as the sewer pipe. On the septic tank there are special holes with stamps. To them and connect the cable.

If the level of soil freezing in your region is large enough, then warm the septic tank. Insulation can be any insulating material that can be used for laying in the ground.

Upon completion of the connection of electricity and pipes, the septic tank should be filled with soil. This is done in layers of 15–20 cm. To equalize the pressure in the process of backfilling, pour water into the septic tank. At the same time, the water level should be slightly higher than the level of backfill of the pit. So, gradually the whole septic tank will be underground.

Sewer device of concrete rings

If you are not satisfied with the finished plastic autonomous system for wastewater treatment, due to its size or cost, then you can make a septic tank from several compartments yourself. Excellent inexpensive material for the implementation of the plan - concrete rings. All the work you can do yourself.

Advantages and disadvantages of the system

Among the advantages of a septic tank of concrete goods rings, we note the following:

• Affordable price.
• Unpretentiousness in operation.
• The ability to perform work without the help of specialists.

Among the shortcomings of attention are the following:

1. The presence of an unpleasant odor. It is impossible to make the construction completely sealed, and therefore the formation of an unpleasant odor near the septic tank is unavoidable.
2. The need to clean the camera from solid waste using assenizatorskoy technology.

To reduce the frequency of the need to pump the septic tank can, if you use bioactivators. They reduce the amount of solid fractions due to the fact that they accelerate the process of their decomposition.

If it is illiterate to mount the rings, the septic tank will be leaky, which will increase the risk of untreated sewage entering the ground. But, with proper installation, the septic tank will be sealed, so this disadvantage of the system is rightly called conditional.

Scheme and calculations

The construction scheme of a septic tank, as a rule, includes 1–2 chambers designed for settling and cleaning wastewater and filtration fields / filter wells.

If few people live in your house and at least a plumbing fixture is connected to the sewage system, then you can easily do with a septic tank consisting of one septic tank and a filter well. Conversely, if you have many households and are connected to the sewage system with many devices, then it is better to make a septic tank from two chambers and a filtration well.

How to carry out calculations of the required volume for a septic tank has already been described above. According to building codes, a septic tank should contain a three-day volume of waste. The volume of concrete goods in the ring is 0.62 m3, which means that for the construction of a septic tank for 5 people, you will need a five-ring sump. Where did this amount come from? For 5 people need a septic tank, having a volume of 3 m³. This figure should be divided by the ring volume of 0.62 m.³. You get the value - 4.83. It needs to be rounded off to a larger one, which means that you will need 5 rings to arrange the septic tank in this particular case.

Preparatory processes

The pit should be of such a size that it can be placed in the chamber of the septic tank and filter well. This work, of course, can be done manually, but it is long and very difficult, therefore, it is more cost-effective to order excavation from a company with earth-moving equipment.

The bottom of the pit at the installation site of the settling chambers must be concreted in order to avoid the possibility of the ingress of untreated sewage into the ground. Before starting the concrete work, one should drain part of the bottom of the pit to install settling tanks, laying a sand cushion on it, in a layer of 30–50 cm.

If you do not want to concrete the bottom, then you can purchase reinforced concrete rings with a blind bottom. They will need to be installed first in the vertical row.

Place under the filter well also requires the preparation of the base. Under it you need to make a pillow of sand, gravel and gravel with a thickness of at least 50 cm.

Mounting rings

To install the rings you have to order the services of lifting equipment. Manually performing these tasks is very difficult. You can, of course, install the ring by means of a tunnel under the lower ring. But this method is time consuming. Yes, and fill the bottom will have to carry out after installing the last ring, which would entail a number of inconveniences. In view of this, it is better not to save on the order of lifting equipment.

Usually rings are fastened together with a solution, but for greater reliability, they can be fastened with metal plates or staples. In this case, your septic tank will not suffer due to the movement of the soil.

Now it is time to organize overflow, and for this you need to bring the pipes to the rings. It is better that they work on the principle of a water seal, that is, they must be installed with a bend.

Sealing

To seal the joints you need to use a solution with an aqua barrier. From the outside, the tanks must be treated with a coating or surfacing waterproofing.

Another option is to purchase plastic cylinders installed inside the well. In this case, the probability of penetration of dirty water will be minimized.

Overlap assembly / backfill

Finished wells need to be covered with special slabs of concrete, in which holes for the installation of manholes are provided. Ideally, the backfill of the excavation should be carried out with a large percentage of the soil in its composition of sand. But if it is impossible to realize this, the foundation pit can be filled up with the ground taken from it before.

Now the septic tank can be put into operation.

A device for cleaning drains from barrels

The system of cleaning drains from barrels, as well as its similar construction from concrete goods, can be two- and three-chamber. Sewage will flow into it by gravity, so it needs to be installed below sewer pipes. The principle of operation of this device is similar to the construction of reinforced concrete rings.

Barrel selection

For arranging autonomous sewage on the principle of a cleaning system, you can use any capacity. These may be old metal / plastic barrels. The main thing is that they are airtight.

If you decide to make a septic tank of metal barrels, then they should be pre-treated with an anti-corrosion agent.

Plastic containers have several advantages over their metal counterparts:

1. A wide range of plastic containers that can be used for the construction of a septic tank.
2. Barrels are highly resistant to the aggressive effects of drains. Therefore, they serve longer than their metal counterparts.
3. The small weight of the containers simplifies their installation in the place of permanent dislocation.
4. Plastic does not need to be further processed, unlike metal.
5. The high tightness of the barrels eliminates the possibility of dirty water entering the ground.

Plastic barrels must be securely fastened when installed in the ground, because due to spring floods or winter frosts they can be squeezed out of the ground. In view of this, plastic barrels are fixed with cables to a concrete base (it must be pre-poured or a concrete slab installed). In order not to crush plastic barrels, ground filling should be carried out very carefully.

For seasonal use, sewage from metal drums will fit, but for stationary use it is not an option.

The popularity of metal containers for arranging sewage systems is related to their compactness and ease of installation. As a cover, you can use an appropriately sized wooden blank or one that was provided by the manufacturer. To install a metal septic tank, you need to dig out the appropriate pit, which also needs to be concreted - the walls and the bottom.

Metal containers do not have a long operational life even after they are treated with anti-corrosion compounds. Therefore, their installation as a septic tank may be unprofitable. Buying stainless steel tanks is not an option, as these products are very expensive.

Maybe you decide that in this case, you can buy barrels with thin walls. However, this is also not the best solution, since during operation such a septic tank can be pushed out. Yes, and these barrels have a limited capacity - up to 250 liters, which is not suitable for a large family.

For the installation of a reliable wastewater treatment system, it is better to use factory polymer drums.

Materials and tools

To make a septic tank of 220 liter barrels, you will need the following materials:

• геотекстиль - 80 м²;
• sewer pipe O110 m, length 5 m;
• crushed stone fraction 1.8–3.5 cm, approximately 9 m³;
• corner for sewage at an angle of 45 and 90? - 4 pcs .;
• 220 l plastic barrel - 2 pcs .;
• coupling, flange - 2 pcs .;
• wooden peg - 10 pcs .;
• Y-shaped sewer tee - 4 pcs .;
• building level;
• perforated perforated pipe in the filter 5 m - 2 pcs .;
• epoxy two-component sealant - 1 pc .;
• PVC adhesive - 1 pc .;
• tap water - 1 pc.

From the tools you will need:

• Shovel.
• Electric jigsaw.
• Rake.

Features of installation of plastic containers

For giving / small country house with economical use standard plastic barrels are suitable. Installing such a cleaning system is easy. If you do not drain into the sewer black drains, the septic tank will be unpretentious to maintain. If the house has a toilet, then the sewage will have to be cleaned regularly, causing assenizatorskuyu equipment.

For private houses with a permanent residence of the barrels will not be enough. For sewage it is better to purchase plastic cubes / tanks / tanks. The process of their installation into the ground does not differ from the installation of barrels.

The distance of the septic tank from the house should not exceed 15 m. Too long a distance will complicate the process of connecting the sewage to the house:

• there is a need for a large burial of the pipeline;
• on the way to the septic tank you will need to install a revision well.

Features of the installation of metal barrels

The sewage system of metal barrels does not require large financial investments and complex installation work. To begin with, as in the previous cases, you need to prepare a pit, and then install 2 barrels, each of which has a volume of at least 200 liters. Then pipes are installed for the overflow of fluid from one barrel to another and transfer to filtration fields / drainage well.

Each subsequent tank should be located below the previous level.

Joints need to be sealed, and the barrel should be warmed with foam. After that, the pit of the septic tank fall asleep. Since, as mentioned above, metal barrels are short-lived, you need to be prepared for the fact that in 3-4 years they will need to be replaced.

After watching the video and correctly doing all the work, it remains only to inspect the system and enjoy the benefits of civilization.

We recommend to read:

• Septic with own hands from eurocube (scheme).
• How to defrost the sewer pipe chemistry.

Video

This video describes the general principle of installation of sewage in the country:

A photo

Scheme