Septic tank Unilos Astra 3. Characteristics, installation, prices and reviews

Country houses and cottages are often not equipped with a sewer system. In such cases, it is necessary to connect an autonomous installation provided with a septic tank for processing waste liquid.

Such equipment must be selected taking into account the number of residents of a given building. Septic tank Unilos Astra 3 is perfect for small homes with a small volume of wastewater.

This septic tank model differs from all representatives of the line in its compactness. Despite this fact, the station copes well with the tasks assigned to it.

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Specifications

• The first thing you need to pay attention to is the maximum number of users of the septic tank. Astra 3 is designed for a maximum of three residents, therefore it is recommended for installation in small dachas.
• Performance. The sewer system is capable of processing up to 0.6 cubic meters of wastewater.
• One-time liquid discharge. For this model, the maximum figure is limited to 150 liters.
• Design power. Septic tank Astra 3 is equipped with one compressor with a power of 40 W.

Septic tank Unilos Astra 3 assembled

• Liquid drainage method. Depending on the type of soil, Astra 3 uses different drainage methods. Gravity - does not require additional equipment and can be used in regions with soil such as black soil or sand. Forced - involves pumping out purified liquid using a special drainage pump. This method is used for soils that do not permeate water well, for example, clay.
• The station is equipped with one block and has small dimensions - length 100 cm, width 80 cm. The height of the structure ranges from 203 cm to 213 cm. This depends on the design features of the lid - it can be flat or with a mushroom.
• Relatively low weight. The Astra-3 septic tank weighs no more than 135 kg, which means that installation will not take extra time and effort.

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Maintenance of septic tanks Unilos Astra

For full functionality of the septic tank, regular maintenance of the device is required throughout the warranty period. You can do it yourself or call a specialized specialist. What is included in the service:

• removing accumulated sediment with an airlift - every 3-4 months;
• removing clots from the bottom of the housing and filter using a drainage pump - once every six months;
• replacement of compression membrane gratings - once every 1-3 years;
• change of filtration mesh - every 2-3 years;
• checking or replacing air aerators - once every 10 years.

You should also call a technician every 10-12 years for a comprehensive diagnosis and check of the functionality of the station.

Compliance with the rules of use allows you to maintain the functionality of the device for 50 years or more. The duration of operation largely depends on the type of drain. You can discharge drains from the bathroom, bathhouse, shower, kitchen, toilet, drains from washing machines and dishwashers into the sewer.

Device and principle of operation

This sewer system is manufactured in such a way that all filter components are located in the housing. The station is located below the surface of the earth in the area that it must serve.

Unilos Astra 3 device

The housing of the Unilos Astra 3 septic tank consists of four elements:

• receiving tank;
• settling tank;
• aeration tank;
• liquid drainage system after processing.

The sewage system in question is equipped with pumps and ventilation. Devices are necessary for aeration of wastewater, as well as for its transportation from one reservoir to another.

The waste that has accumulated as a result of the wastewater filtration procedure is removed using pumps. If additional pumps are installed, the waste removal rate increases significantly.

The operation of a septic tank is based on two processes: mechanical and aeration. No active chemicals are involved in the processing process.

The procedure for processing waste liquid is as follows.

Equipment Unilos Astra 3

The wastewater is discharged into a receiver, where the first step in its processing takes place. The waste liquid is mixed with activated sludge, which is formed due to the activity of a colony of bacteria located in the sewer. The receiving chamber performs the following procedures:

• after mixing activated sludge with wastewater, oxygen saturation occurs, as well as anaerobic-anoxic filtration of the latter;
• the liquid level inside the cleaning station is equalized;
• large fragments precipitate;

It is important to know! To eliminate the possibility of blockages in the sewer system, it is necessary to pay attention to the substances that are washed into it. It is not recommended to wash off any debris that cannot be broken down by bacteria, for example, polyethylene or wool, large elements or sand.

• after this, the accumulated and settled liquid mixed with sludge masses is transported to the aeration tank by means of an airlift. In this section, the mixture is oxidized and oxygenated through biological processes. Substances of organic origin break down into nitrites and carbon dioxide. In fact, the Unilos Astra 3 septic tank accelerates the natural processes of decomposition of substances.
• then the treated liquid flows into the second settling tank. There is no oxygen in this chamber, and therefore the liquid is separated from the activated sludge without additional intervention. After this, nitrite and nitrate nitrogen restores its structure.

Operating principle of Unilos Astra 3

• sludge constantly moves from the aeration tank to the second settling tank and vice versa. The fat layer that is on the surface is broken down using special means. The individual elements are returned to the aeration tank for reprocessing.
• processed water without sludge masses is removed from the settling chamber. The discharge of recycled liquid can be carried out by gravity or forced. Also, the purified liquid can be used to water the land.
• If the liquid level in the sump drops, recirculation begins.

• sludge particles are retained in the aeration tank. After some time, they accumulate into fairly large fragments, which are removed by airlift. The remaining sludge masses are transferred to the stabilizer and then disposed of.

It is important to know! This system is fully automated and therefore does not require human intervention, but the level of accumulated substance should be regularly monitored.

• recirculating water with sludge particles is discharged into a receiving tank, where large fragments remain. The water is saturated with oxygen, mixed with activated sludge, and then split into small fragments.

As new wastewater enters the primary reservoir, the water level in it rises, which is why the purification process starts again.

Unilos Astra 3 interior view

All the processes described above are carried out automatically and do not require human intervention.

It is important to know! For constant and stable operation of the autonomous sewage system Astra 3, it is necessary to ensure an uninterrupted supply of electricity. This is necessary for stable operation of the compressor. Otherwise, the colony of bacteria will not be able to properly clean the drains.

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Frequently asked questions about Astra installation from our customers

1. Is it possible to buy Astra from you and do the installation yourself?
   It’s possible, some do just that, and then spend money on correcting mistakes. Installing a sewer requires experience and special knowledge. Don’t take risks and order an Astra septic tank with turnkey installation. Our installers have extensive experience and are provided with all the necessary tools.
2. How long does it take to install a sewer?
   Turnkey completion time is 7-8 hours. After installation, the septic tank can be used immediately.
3. How to pay for installation?
   We offer three payment methods: cash, from a bank card, or by transfer to the company's bank account.
4. I want to install Astra, but right now I don’t have the full amount.
   Is it possible to split the payment? We can pay for installation in installments. You pay the entire amount within six months, without a down payment and without interest.
5. My groundwater is high.
   Is it possible to install Astra? Can. A filled septic tank weighs enough not to float. The only condition is not to leave the treatment facility empty after pumping.
6. What guarantee do you provide for installation?
   The Zagorod company has the longest warranty on the market - up to 5 years!

Do you want to buy an Astra septic tank, but don’t know where yet? Call Zagorod! Our experience in sewerage installations is 10 years, our staff is only professionals, and the work process is well-established. We work in Moscow, St. Petersburg, Pskov and Yekaterinburg. You can call us any day from 9.00 to 20.00. Applications via the form on the website are accepted around the clock, managers respond during business hours.

User manual

The operation of this device is associated with some features. A technical passport is supplied with each device, where all the rules are stated. The passport also contains instructions for using the station, describes what liquids can be flushed, and also has a section on the nuances of septic tank maintenance. The most important rule that must be followed unquestioningly is to create a comfortable environment for the growth of bacteria.

The following should not be flushed into this sewer system:

• chemical substances;
• wool, contents of dust containers, any large debris;
• rubber, plastic and polyethylene products;
• rinsing waters.

It is necessary to discharge acidic chlorine-containing substances as rarely as possible. When using a septic tank, excess sludge should be removed regularly.

Septic tank maintenance

As the instructions say, Astra 3 can be flushed into the autonomous sewer system:

• low-density toilet paper;
• waste after washing, provided that the powder does not contain chlorine;
• kitchen drains, if they do not contain chlorine-containing detergents;
• wastewater from bathtubs and showers;
• means for caring for plumbing fixtures, but not more often than once every seven days.

You should also not wash off a large amount of liquid at one time. The device is controlled using several buttons.

We recommend following the link https://vse-postroim-sami.ru/engineering-systems/plumbing-sewerage/7200_septik-topol/ to learn more about the Topol septic tank. You may also be wondering how to preserve a septic tank for the winter. Read about how to properly build a septic tank here.

In order to start working, you should press the “Network” button, which is responsible for automatically starting the station. All other buttons are needed for maintenance and control of equipment operation.

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Digging pits and trenches for pipes

The pit is dug by hand. When digging, the dimensions prescribed by the manufacturer in the technical data sheet for the sewer are observed. The exception is difficult soil with stones or quicksand. In these cases, an excavator is hired to excavate the soil. A sand cushion 15 cm thick is poured at the bottom of the pit. The sand is leveled so that the septic tank stands up without distortion.

Workers are digging a pit

If there is quicksand in the ground and the walls of the pit collapse, then we make wooden formwork. Important: quicksand is not determined during measurements before installation, so the formwork is not initially included in the estimate. If necessary, we bring boards and construct the formwork on site.

Formwork in flooded soil

Installation

Installation instructions for Unilos Astra 3 begin with determining its location. Ideally, the sewer line should be straight without bends, this way you can save money on purchasing inspection wells. The distance from the building should be about five meters.

The installation of this station consists of several steps.

Pit preparation

If the soil allows, then all preparatory work for arranging the pit can be done manually. This way you can save money and preserve the original landscape design. If work is carried out on rocky terrain or any other difficult-to-process soil, it is necessary to call specialized equipment.

Digging a pit

The depth of the pit depends on the location of the sewer line. For the Astra 3 septic tank, the depth must be at least 230 cm. The pipes that are supplied to the septic tank must be no deeper than 0.6 meters. The pit should be 0.5 meters wider than the dimensions of the septic tank. After the trench has been dug, it is necessary to level and compact its bottom.

There should be no stones or loose soil under the structure. The bottom of the pit must be covered with a layer of sand of 0.25 meters. The depth of the structure should be 0.15 meters greater than the dimensions of the device, taking into account the embankment.

Preparing the supply trench

The width of this trench should be about 50 cm and the depth 0.6 meters. These dimensions should be sufficient to arrange a sand cushion and maintain the required slope.

Supply trench

Its dimensions depend on the modification of the installed structure. If the autonomous sewer system is equipped with a drainage pump to remove recycled liquid, it is necessary to maintain a distance of 7 cm from the septic tank itself to the point of water release. If the pump is not present in the cleaning system, then this trench is arranged in the same way as for the supply line. It extends from the outlet of the septic tank to the filter platform.

Lowering the septic tank into the trench

This operation will require four people. The installation must be tied with ropes and placed near the hole in a horizontal position, and then carefully lowered down.

Descent of the septic tank into the pit

Septic tank leveling

After the structure has been laid in the pit, work on its installation should begin using a building level. The level must be set perfectly, the slope must be zero.

After this, the containers must be filled 50% with liquid and the structure must be sprinkled with sand on all sides up to the level of the pipeline inlet.

Installation of supply pipeline

Sand should be poured into the trench and compacted tightly. The thickness of the resulting pillow should be at least 0.1 meters. When installing pipes, a slope of 2% should be maintained.

Brown pipes are perfect for these purposes. Such products are much stronger than others, and therefore are not subject to mechanical stress from the soil. The diameter of these pipes should be 11 cm. The pipe coming out of the base of the building must be connected using a bend.

It is important to know! During sewer installation, turns should be made by 15-45 degrees. If the length of the line is more than 15 meters, and the angles of rotation reach 90 degrees, inspection wells must be installed to eliminate possible blockages.

Dple needs to do some insulation. To do this, you need to lay insulation along the length of the line. You need to use foamed polyethylene. After laying the pipeline is completed, it should be covered with sand and compacted.

Installation of supply pipe

At each stage of installation it is necessary to control the angle of inclination. This is a condition for normal transportation of liquid along the line without clogging.

Electrical cable installation

When laying sand, you need to leave room for the cable above the pipes. It must be laid loosely so that it does not tear if the soil moves. After this procedure, the trench must be covered with earth.

Connecting the system to the supply pipeline

The process is carried out through a polyethylene pipe. The junction of the tubes and the wall of the station must be treated with a construction hairdryer to ensure tightness.

Organization of wastewater disposal

Installation of pipes is carried out in the same way as installation of the supply system. A concrete well can be used to construct a wastewater receiver.

It is necessary to lay the pipeline on a sandy base in the main line from the outlet pipe with a diameter of 11 cm. Then you need to cut in the ring and seal it with a waterproof substance.

Wastewater disposal

At the same stage you need to install the pump. After all work is completed, the trench should be covered with a layer of sand, and then with the remaining earth.

If the plans include the installation of a storage tank, then it must be carried out in exactly the same way as the installation of the structure itself.

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Installation of a septic tank

You can install the Astra treatment system yourself; the principle of connecting a septic tank to a sewer system is practically no different from connecting a septic tank made of rings to it.

Photo - installation of the Astra Unilos well

Step-by-step instruction:

1. Before starting installation work, you need to prepare the area. For a dacha or residential cottages, the minimum permissible distance for installing a septic tank is 6 meters from the facade of the building. Please note that if there is a water source on or near the site, then the distance from it should be approximately 50 meters;
2. The depth of digging depends on the level of soil freezing. The wall thickness of 2 centimeters leaves no doubt about its mechanical strength, but the plastic becomes brittle when exposed to low temperatures, so it’s better to play it safe. The container must be completely immersed in the pit, the trench is additionally concreted and insulated;
3. To insulate the pit, a variety of materials are used: clay, polystyrene foam, penoplex and other available heat insulators;
4. Before concreting, branches are dug in the ground to the house and other sewer branches (for example, to a summer shower or bathhouse);
5. Installation of the septic tank itself is carried out only with the help of special lifting equipment; the weight of the system exceeds 500 kilograms;
6. After installation, all pipes are connected to the septic tank, and the joints are sealed.

Photo - schematic diagram of the installation.
The operating instructions for the Astra septic tank are very simple: periodically clean the settling tanks of silt and dirt and replace the bacterial filters. Some experts say that there is no need to renew bacteria, because they multiply on their own in the septic tank, but we still recommend periodically checking the effectiveness of the aerobic filter.

Photo - treatment well on the site

Video on the topic:

Electrical connection

There is a sealed cable entry on the front surface of the unit. A cable with phase-neutral-ground conductors is suitable for this purpose. It must be connected to the compressor compartment.

Now you can begin installing the compressor. It is equipped with rubber feet, and therefore the noise level from the device is minimal even with the lid open.

The pump and compressor are connected to the electrical network through sockets located in the compressor compartment of the structure.

Electrical connection

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Sprinkling and filling

The septic tank is filled with water and sprinkled with sand. It is important to do this at the same time so that the water pressure from the inside and the soil from the outside are balanced. It is impossible to fill an unfilled septic tank or sprinkle it without filling. There is a risk of damaging the case.

Do not sprinkle the treatment plant with excavated soil. This is a common mistake that leads to damage to the housing due to frost heaving. Clay soil is especially dangerous.

Sand must be compacted when pouring. For this purpose, it is spilled with water. It is necessary to shed each layer as you sprinkle it, so that the sand is well saturated. Unshed sand will sink.

Pouring sand with water

Advantages in everything

Without exception, all modern septic tanks are based on biological cleaning principles. The entire “Unilos” family of septic tanks is no exception. This technology provides a whole range of advantages:

• You can buy an autonomous sewer system for any site, since the minimum dimensions of the installation allow it to be installed in a space of several square meters. At the same time, maintenance will not require much effort and can be carried out on your own without the involvement of specialists in order to save a little money.
• A high degree of purification makes it possible to satisfy existing SES standards. If you decide to buy a septic tank in Moscow or the Moscow region, you don’t have to worry about the purity of the discharged wastewater and the environmental safety of the site.
• Minimal maintenance costs. The operation of a septic tank does not involve the need to regularly participate in the process of its operation. It is quite simple to empty the settling tank of accumulated sludge as necessary.
• No noise or unpleasant odors during operation. This is an important point that allows you to make the installation as invisible as possible on the site, and even being a few meters away from it will not give away the operation of the station.
• Easy to install. If you decide to purchase an autonomous Unilos sewer system in the Moscow region, you can install it yourself, but it is better to use the services of specialists who have the necessary practical experience in working with stations of various capacities and sizes.
• The completely plastic body of the unit eliminates the possibility of it being damaged by corrosion, while its sufficient thickness reliably protects the station from possible mechanical damage. As a result, the septic tank body will retain its original properties even after 50 years of active use.
• By maintaining the same temperature inside the unit, its operation is possible in any weather, even in severe frosts.

How to buy a septic tank and its cost

For those wishing to purchase Unilos septic tanks, the official website of our company offers a wide range of models with a detailed description of each of them. If necessary, you can get professional advice from a specialist on any thematic issue of interest.

offers its customers turnkey installation of autonomous sewer systems, as well as a full range of warranty and post-warranty services. High-quality equipment, professional installers and a wide range of providing services are the main list of advantages provided to the company’s clients.

The use of Unilos septic tanks is a cheap and at the same time effective means of disposing of household wastewater. By contacting us for help, you are guaranteed to receive services at a high professional level and become the owner of a modern and efficient autonomous sewage system for your home, the price of which is affordable and affordable. Visit our official website, Unilos septic tanks are available in all the variety of existing installation capacities.

Principle of operation

Contaminated household wastewater enters the first compartment - a receiving chamber with a filter for large fractions. Here the liquid settles, after which it is pumped along with the light fractions into the aeration chamber. This compartment is populated by aerobic bacteria that process organic impurities into activated sludge. In the third chamber, secondary sedimentation is carried out - heavy fractions settle to the bottom, and the clarified liquid is returned for recycling back to the aeration chamber. In the fourth compartment, additional purification is carried out. The water leaving the system is 98% purified and can be safely discharged into the soil.

Full autonomy of the sewer system

Today, centralized sewerage is not available for suburban construction; even new cottage villages are not able to provide them. Owners of private households may also have difficulties with the disposal of household waste. Unilos septic toilets have become an excellent solution to this problem; for reasonable money, you can get an effective and reliable system that can provide the necessary level of domestic comfort for many years.

Septic tanks "Unilos" are among the biological treatment stations operating on the basis of the influence of anaerobic bacteria on wastewater. At the same time, the station can be additionally equipped with filtration fields, allowing the filtration level to be increased to a level sufficient to discharge purified water into the ground or reservoirs. Such a multi-stage cleaning system makes the Unilos autonomous sewage system in Moscow and the region an excellent solution in any situation.

A high degree of mobility, compact installation dimensions, extreme ease of maintenance, all this significantly simplifies the operation of the equipment. By choosing “Unilos”, a septic tank will allow you to solve the sewerage problem in your house for a decade and a half, and you can use the equipment not only on a seasonal basis, for example, at the dacha, but also year-round.

Autonomous sewage system Unilos

For rural areas and suburban settlements, central sewerage remains an unattainable luxury, which until recently put an end to the possibility of creating truly comfortable housing, in no way inferior to houses in the city. Now, an autonomous suburban sewer system has appeared, which allows you to solve the whole range of problems with drainage, easily build a toilet and bathroom in the house, install the necessary household appliances, creating the necessary level of convenience in everyday life.

Treatment processes in Unilos installations are based on the biological decomposition of pollutants into simple substances. Such a scheme is considered not only the most effective of those existing today, but also the safest from the point of view of environmental protection. Active bacteria are added to the installation tank, which, when passing through the compartments of the septic tank, cleans them, bringing the condition of the wastewater to a level suitable for disposal into the ground.

With all this, the price for a septic tank is affordable for all owners of suburban real estate without exception.

The use of autonomous septic tanks allows not only to solve problems with sewage supply, but also to ensure minimal energy consumption. Practice shows that the pumping equipment used in installations, even with minimal care, can last up to 15 years without replacement. At the same time, it operates without any noise that could cause discomfort to residents.

There are no restrictions on the frequency of use of the system. That is why such septic tanks for a summer residence with temporary residence are simply an ideal option that does not require serious material investments.