- Selection criteria and price
- The lineup
- Unilos 3
- Unilos 4
- Unilos 5
- Unilos 6, 8
- Unilos 10
- Other models
- Specifications
- Types and characteristics
- Advantages and disadvantages
- The principle of operation of the Unilos septic tank
- Unilos septic service
- Unilos septic tank cleaning: sludge pumping
- Cleaning the filter and Unilos pump
- Stages of cleaning the secondary clarifier Unilos
- We clean the compressor
- Secondary pollution elimination scheme
- Precipitation elimination
- The principle of operation of the Astra septic tank.
- Astra sewerage installation
- Station installation steps
- Installation of a septic tank Unilos
- Advantages and disadvantages of the Astra 5 septic tank
- Structural and operational differences
- Compressed air sources
- Control
- Varieties of models
- Case features
- Volley discharge volume
- Design features of a septic tank from Unilos
- Device and principle of operation
Selection criteria and price
When designing treatment plants, it is taken into account that one user consumes about 200 liters of water per day. Everything is included here: daily bathing, cooking, using the toilet, etc. Therefore, when choosing a model, it is necessary to build on the number added to the name of the septic tank. For example, the Unilos Astra 3 septic tank is designed for a family of three.
Cost also depends on performance.The table below, for reference, shows the average prices for Unilos septic tank models.
| Model | Number of users | Productivity (l/day) | Dimensions (mm) | Price, rub.) |
| Astra 3 | 3 | 600 | 1120×820×2030 | 66 500 |
| Astra 4 | 4 | 800 | 1120×940×2280 | 70 000 |
| Astra 5 | 5 | 1000 | 1120×1120×2360 | 76 800 |
| Astra 6 | 5 | 1000 | 1120×1150×2360 | 82 000 |
| Astra 7 | 7 | 1400 | 1120×1150×2360 | 90 500 |
Video: How Unilos works. The principle of operation of a modern sewerage septic tank Unilos Astra.
The lineup
A septic tank for a dacha or a country house Unilos is a great solution, but it is important to choose the right model so that it provides efficient drainage depending on the number of permanent residents
Unilos 3
The Astra 3 septic tank is the most compact representative in the VOC line (local treatment plant). It is perfect for a summer cottage, or for a family of 3 people. The Unilos Astra 3 septic tank has small dimensions: length - 1.12 m, width - 0.82 m, height - 2.03 m; weighs 120 kg. The installation has all the necessary elements that help to clean drains efficiently and quickly. The wastewater treatment plant of the Astra 3 type processes up to 600 liters per day. It is possible to install the installation if the depth of laying sewer pipes from the house does not exceed 60 cm.
The body of Astra septic tank 3 is made of durable plastic, which is absolutely environmentally friendly, and, what is very important, airtight material. Due to the increased strength, it is possible to save on installation - no need to fill the pit with concrete
The Astra 3 sewerage system will withstand a salvo (one-time) discharge of up to 150 liters.
Unilos 4
The Astra 4 septic tank is designed for operation by 4 users. It is somewhat more powerful than the previous type and larger in size. Specifications:
- Length - 1.12 m.
- Width - 0.94 m.
- Height - 2.28 m.
- Weight - 120 kg.
The productivity of such an installation per day is 800 liters, and a salvo discharge is 180 liters.Pipes must have the same depth - 60 cm.
Unilos 5
The Astra 5 station is the most popular for domestic use, since the ability to divert wastewater when living in a house of 5 people is the best solution for an average family. The installation of the popular Astra 5 septic tank can be carried out to service a country house, cottage. Its wastewater treatment capacity is 1 m³ per day. In this setting, you can reset:
- Drainage from the kitchen.
- Toilet paper.
- Drainage from bathroom, shower, washing machine.
- In a small amount of drain after washing the toilet. It is in a small one, because often aggressive chemicals are used for this process, which can destroy bacteria.
Various types of septic tank Astra 5
Astra 5 septic tank is not designed for discharge:
- Compounds that cannot be biodegraded.
- Construction waste.
- Aggressive chemicals, acids, oils.
- Rotten food.
- Animal fur.
- Medicines.
- chlorine-containing substances.
You can install an autonomous sewage system Astra Unilos 5, which provides forced drainage. Its configuration differs from the basic one due to the presence of a pump for pumping wastewater. In this case, during installation, it will also be necessary to equip a drainage well, and liquid treated effluents are discharged there.

Unilos 6, 8
Septic tanks with the ability to serve 6 and 8 people are not as popular as the previous type. Characteristics of the Astra 6 septic tank:
- Length - 1.12 m.
- Width - 1.15 m.
- Height - 2.36 m.
- Weight - 210 kg.
- Productivity - 1 m³.
- Volley discharge - 280 l.
The septic tank Unilos Astra 8 has the following parameters:
- Length - 1.5 m.
- Width - 1.16 m.
- Height - 2.36 m.
- Weight - 320 kg.
- Productivity - 1 m³.
- The maximum salvo discharge that the Astra 8 septic tank can withstand is 350 liters.
In the model line of the Astra 8 septic tank, there are variations that have similar technical characteristics, but with a deeper pipe connection. If for the standard version it is 60 cm, then for "midi" and "long" - more than 80 cm.
Unilos 10
Unilos Astra 10 is a model, which is the most productive for domestic use. The station is quite large: length - 2 m, width 1.16 m, height - 2.36 m. It weighs 355 kg. The Astra 10 septic tank has a capacity of 2 m³ per day, and a volley discharge of up to 550 liters.
Since the dimensions, and hence the soil pressure area, are larger, there are stiffening ribs that will not allow the compartments to deform. Due to the large bandwidth, Unilos Astra 10 can be connected to:
- Kitchen drains.
- Drains from the bathroom, shower.
- Bath, jacuzzi.
This installation can also be used for autonomous sewerage for small cafes, restaurants, if there is no possibility of tapping into a centralized system.
Other models
Unilos Astra is also offered in other models. The number of people served and the disposal of wastewater from their life activities varies from 3 to 150. The most massive and productive installations may well be used for entire residential areas, hotels and other commercial purposes.
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 summer cottages.
Performance
The sewer system is capable of processing up to 0.6 cubic meters of wastewater.
Disposable liquid discharge.For this model, the maximum figure is limited to 150 liters.
Structural power. The Astra 3 septic tank is equipped with one compressor with a power of 40 watts.

Septic Unilos Astra 3 assembled
- Method for removing liquid. 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 - is a pumping out of the purified liquid through a special drainage pump. This method is used for soils that do not pass 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. It depends on the design features of the cover - it can be flat or with a fungus.
- Relatively low weight. The Astra-3 septic tank weighs no more than 135 kg, which means that the installation will not take too much time and effort.
Types and characteristics
There are many Unilos models. The most common is the Astra series. They come in different sizes, from Astra three to Astra one hundred and fifty. To select a suitable model, the daily amount of water consumed by all residents is calculated. The larger it is, the greater the capacity of the station will be needed and the higher its cost will be.
The most common are Astra 3, 5, 8 and 10. They are used in small and medium country houses. These devices are characterized by an excellent ratio of high quality and reasonable price, and serve from three to ten people, respectively.But the huge Astra 150 model is designed for a house where one hundred and fifty people live.
In addition to the Astra series, there are other Unilos local stations, for example, Mega, Skorobey, and so on.
The main characteristics of the most popular Unilos Astra are as follows:
- Astra 3 is designed for three living people, its dimensions are: length - 0.08m, width - 1m, height - 2m, power - 60W;
- Astra 5 - for five, 1.04m / 1m / 2.36m, 60W;
- Astra 5 long - for five, 1.16m / 1m / 3m 60W;
- Astra 5 midi - with a special forced tap for five, 1.04m / 1m / 2.5m, 60W;
- Astra 8 - for eight or four, 1.5m / 1.04m / 2.36m, 80W;
- Astra 10 - for ten people, 2m / 1.04m / 2.36m, 100W.
location of the Unilos septic tank on the site
Advantages and disadvantages
The following points stand out from the advantages of the station:
- you can not call the sewer truck and clean the station yourself;
- maintenance requires minimal effort from the owners;
- purified water is used for watering flowers and gardens, washing cars or draining into the ground;
- station operation is fully automated;
- the device has an exceptionally reliable and durable design;
- water is purified to the level of ninety-five percent;
- fast installation;
- possible use all year round.
Of course, Unilos also has disadvantages. The first and foremost of these is the dependence on electricity. Electricity must work without interruption. If it is turned off for at least twelve hours, then the bacteria living in the station and purifying the water will die. Then you have to change the activated sludge. Microorganisms will take some time to start working again in full force.
Most often, to solve this problem, an autonomous power plant is connected to the house.
The principle of operation of the Unilos septic tank
The station is made of fiberglass, consists of two or three chambers, where sewage is gradually multi-staged cleaning. For efficient operation, it is best to additionally install filtration fields that purify water to an optimal level before it enters the ground. The operation of the device in general is as follows:
- Once in the station, the effluents are first settled. In this case, insoluble wastes settle to the bottom, and fats float to the outside. The resulting layer of clarified liquid enters the next chamber, where it is mixed with activated sludge. Water is oxidized and pre-treated.
- Next, the liquid enters the aerotank, where it undergoes the stage of aeration and oxidation. Effluent decomposes into nitrite and carbon.
- A cleaner liquid passes into the next chamber, where it settles a second time. The rest of the silt sinks to the bottom.
- Then the purified water is released outside the station.
- At this time, a recirculating stage takes place in the second settling tank, during which the water passes back into the receiving chamber and mixes with the sludge, splitting even more.
- Then the whole cycle is repeated anew.
installation steps for a Unilos septic tank
Unilos septic service
Maintenance of Unilos Astra is a necessity, because the system carries out filtration, during which surpluses are formed. In addition, constant monitoring of the technical condition of all elements of the system allows you to create conditions for trouble-free operation. Regular and timely maintenance of the Unilos septic tank can significantly extend the life of the complex.
Unilos septic tank cleaning: sludge pumping
Each Unilos Astra sewer cleaning should begin with a power outage on the main panel. Next, remove the pipe leading to the standard pump from the mounts. The next steps look like this:
- A plug is removed from the branch pipe of the standard pump (to do this, unscrew the clamp).
- Next, you need to bring the pipe to the tank, turn on the power supply and the first phase of work, after which the removal of excess activated sludge (about 40-60 liters) will begin.
- Upon completion of pumping, turn off the power to the control unit. Then the clamp and the plug of the pipe are returned to their place.

Important! Cleaning the Unilos station may require the use of some tools. In the case of pumping sludge, you will need a screwdriver (to remove the plug)
Cleaning the filter and Unilos pump
For work, it is necessary to remove the filter, for which a Phillips screwdriver must be used in the work. Cleaning is necessary for the timely removal of large litter, which interferes with the operation of the treatment plant. The stages of work are presented as follows:
- The first step is to turn off the compressor of the Unilos Astra station.
- Then it is necessary to release the hose of the main pump from the retaining clips, and with it the filter.
- After removing the spare part of interest, it is necessary to flush it with a powerful pressure of water, after which it is necessary to install the filter and hose in their original position.
Interesting! Topas septic tanks are serviced according to a scheme similar to Unilos.
Stages of cleaning the secondary clarifier Unilos
Cleaning the Unilos equipment and the secondary clarifier in particular is necessary to prevent dirt particles from entering the wastewater. To work, you must perform the following steps:
- Disable station.
- Under the pressure of water, remove the film from the walls of the tank, then catch it with a net.
After the cleaning of the Unilos sewer and its reservoir has been carried out, the station can be turned on.

We clean the compressor
The Unilos Astra sewer instruction manual also involves compressor maintenance, which consists in cleaning its filter. To perform work, you must:
- Unscrew the compressor cover (using a Phillips screwdriver).
- Remove the filter, rinse it, dry it and return it to its original position. Close the lid.
Secondary pollution elimination scheme
The Unilos operation and maintenance manual also includes mandatory cleaning of systems that trap secondary pollution. In this case, we are talking about a hair receiver.

To start cleaning, you need to remove the device from the main chamber. After collecting dirt, thorough rinsing under powerful water pressure is recommended.
Precipitation elimination
Another item that contains equipment maintenance instructions is the removal of stabilized sludge. The procedure is carried out once every five years. To carry out the work, it is necessary to connect a drainage (can be replaced with a fecal) pump to the system. The steps of the procedure are as follows:
- System power is turned off.
- The pump hose is lowered to the bottom of the tank, where the stabilized sediment accumulates.
- Next, the sludge is pumped out and the system is started.
It is important to note that the maintenance of Unilos Astra 5 is somewhat different from other models.In addition to the presented procedures, the system also needs periodic replenishment of bacteria in the reactor, as well as the creation of a layer that provides heating of the equipment.
The principle of operation of the Astra septic tank.

The main stages of wastewater treatment in the device are as follows:
- Through the sewer pipe, sewage enters the first section of the septic tank. Here is a large filter to stop the largest impurities. This is where the liquid settles.
- Then the liquid passes into the second section. There are colonies of aerobic bacteria that need oxygen to live. They begin to process the organic component of wastewater. An important factor is that the purchase of drugs with bacterial colonies is not required. They themselves arise during operation (about 3 weeks or a month, depending on the number of people served). But one way or another, there are ready-made biological products with microorganisms on the market. To start their work, you just need to drain the drug into the toilet. Subsequently, the artificial introduction of bacteria is not required.
- Further, the liquid flows into the third section. Here, part of the silt settles to the bottom, and the second part, floating closer to the surface, goes back to the second section for processing.
- In the final section, the final water purification takes place. As a result, it, with a degree of purity of about 98%, is displayed in the ground. It fully complies with sanitary standards and is safe for soil and groundwater.
Astra sewerage installation
Station installation steps
Sewerage for giving Unilos during installation will not require much effort:
- The installation is delivered to the installation site by road. Special equipment for unloading is not required.
- The station is installed in a prepared pit.It is desirable that the walls of the pit are at a distance of 10 cm from the installation body. Concreting of the pit is not necessary.
- It is necessary to fill the station with water and only then sprinkle it with coarse sand.
- An electric cable is brought to the station.
- When installing the inlet and outlet pipelines, it is necessary to carefully monitor the tightness of the connections.
- Compressor installation.
- Test check of work of station.

Station installed in a pit
Installation of a septic tank Unilos
Installation of a treatment plant, as a rule, takes place quickly (no more than 3 days):
- A septic tank (for example, Astra 5) is installed in the pit so that the supply pipe is located at a level of 60 cm from the surface. If this condition cannot be met, then it is better to choose modifications specially designed for deeper placement of the supply pipe - midi or long.
- The station is placed in a prepared pit.
- The station is filled with clean water.
- The station body is backfilled with coarse sand.
- Maintenance of the station - periodic removal of excess sludge and carrying out the necessary preventive maintenance.

Advantages and disadvantages of the Astra 5 septic tank
The Astra 5 septic tank has a lot of advantages:
- high degree of water purification;
- compactness, light weight;
- no need for regular pumping;
- the possibility of using purified water and sludge;
- maximum depth of the inlet manifold.
98% harm to nature.sewer polypropylene pipes
The serial line includes the Long Astra 5 model, in which the inlet manifold is located at a depth of 1.2 m. This makes it possible to install the system at a large installation depth of a polypropylene sewer pipe.Partial regular cleaning of the chambers from sludge can be done independently, using it as a fertilizer. The body has walls 2 cm thick, additionally reinforced with stiffeners. Therefore, the system is able to withstand high pressure, does not require insulation. The septic tank is equipped with a compressor control unit, so constant monitoring of its operation is not required.
Like any other equipment, the Astra 5 septic tank also has weaknesses:
- dependence on electricity;
- low performance;
- the need for the participation of specialists in installation and maintenance;
- restriction of substances allowed for disposal.
Equipping a septic tank with a compressor and a control system greatly simplifies operation and increases work efficiency. But this requires additional costs for electricity, does not make it possible to install the system in areas where power outages often occur. In such conditions, it is better to purchase a non-volatile septic tank TANK. Thorough four-stage wastewater treatment guarantees a quality result, but it takes time. Therefore, the Astra 5 system can be used in a house where no more than 5 people live, the volume of wastewater does not exceed 1000 liters. For example, an autonomous sewerage system for a TOPAS private house can serve 20 people.
4 times a year. drain pumpcompressor unit.system cleaning
Wastewater in the septic tank cleans aerobic bacteria, which guarantees environmental cleanliness. But in order not to harm them, it is necessary to comply with restrictions regarding the presence of certain substances in wastewater. Do not drain water into the sewer, which contains chlorine, medicines, fuels and lubricants, plastic wrap.
Structural and operational differences

The device of treatment stations: Unilos Astra - on the left, Topas - on the right
Compressed air sources
Topas is powered by two Taiwanese-made compressors, which are switched on in turn when the operating modes of the station change.
- Two devices of the same type occupy a significant part of the internal volume.
- The location makes it difficult to access for service and routine repairs.
- Frequent switching has a negative effect on the service life of the membranes.
Astra septic tanks are equipped with reliable and durable electrical equipment from Japanese manufacturers. The operation of a single compressor is controlled by an electronic unit.
A constant supply of fresh air significantly increases the intensity of wastewater treatment. The small-sized compressor device does not create problems during maintenance.
Control
Unfortunately, Japanese automation is sensitive to voltage drops. The disadvantage is manifested by frequent failures of the solenoid valve. The problem is solved by connecting Unilos equipment through a fairly powerful stabilizer.
The control unit of the Topas station works only for switching on and off. Automation "Astra" is more advanced, since it is possible to change modes manually.
Varieties of models
Both stations are produced in several modifications, which differ in performance and dimensions. The choice of Unilos products is wider. The most compact model will be the best solution for a small family of three.
The differences between the models of this brand are in the different height of the neck.For basic modifications, the depth of connection of the underwater pipe is 60-120 cm. For stations with a built-in sewage pumping station, this figure increases to 2.5 m.
Both models of Topas stations are less perfect in this regard, since in the standard version the pipe can be connected at a depth of 85 cm, and for a modification with a long neck, this figure increases to only 1 m 45 cm. There are no systems with an integrated sewage pumping station in the proposed range.
Case features
Corrosion-resistant polypropylene housing of the station "Topas" is highly resistant to deformation loads due to special stiffening ribs. The polymer tolerates large temperature fluctuations without consequences, and also does not lose its operational properties for 50 years.
Designers of Unilos septic tanks preferred polypropylene, which compares favorably with a homogeneous polymer in more efficient heat preservation. Increased strength is guaranteed by an increase in wall thickness up to 24 mm, the presence of double stiffening elements.
Volley discharge volume
When choosing a model of a cleaning station, this parameter should be considered among the first. A large volume of wastewater discharged into the sewer system can in the shortest possible time initiate an overflow of the internal volume and a decrease in the quality of treatment.
Giving preference to a certain model of the Astra septic tank or the same type of Topas installation, first of all take into account their performance and only then select the volume of the receiving chamber.
Design features of a septic tank from Unilos
This septic tank is a single tank, inside which a complete wastewater treatment process takes place.The body is made of environmentally friendly polypropylene, resistant to chemical reactions and ground pressure.
The walls of the septic tank are equipped with stiffeners and welded using a unique technology in which substances are combined at the molecular level, forming an integral structure with high mechanical strength. The thickness of the hull is 2 cm, so in many cases it does not require concreting the base.
There is not a single mechanical unit inside the case, which greatly improves the strength of the structure.
Device and principle of operation
In order for an individual sewage system to fulfill its duties, it is necessary to monitor it, service it in a timely manner and replace worn parts. The service life of the aster septic plant is 50 years. During this time, many components will have to be replaced.
The instruction manual indicates which components should be changed at what time. To avoid problems with the performance of the equipment, you have to figure out what it consists of and how it works.
Image gallery
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Installation of Unilos Astra sewer stations can be carried out in any type of soil, regardless of the height of the groundwater table
Installation of the station does not require a concrete slab at the bottom of the pit and anchoring of the system body
The only important point for choosing a place for installing a septic tank is ease of maintenance
The manufacturer of sewerage stations, Unilos Astra, offers a wide range of models to solve the problems of a family of 1 to 3 people up to the arrangement of hotels with a population of 300 people.
The reliability of the hermetic case and the flawless operation of the system allows the station to be located close to the foundation, and not within the 4-5 m required by the rules
During operation, unpleasant odors are not emitted that can create discomfort for neighbors. Therefore, it is possible to put a septic tank near the border of the site.
Wastewater treatment indicators produced as a result of the operation of the Unilos Astra station are 95% or more. Purified water can be disposed of in the ground or in the sewer
Septic tanks do not require constant monitoring of work. It is only necessary to carry out a visual inspection once a week, and once every three months, pump out the sediment with a standard pump. When using a drain, it is pumped out once every six months
Geological conditions for the Astra septic tank
Advantages of ease of installation
Landmarks for choosing a place for a septic tank
Wide model range
Benefits of case tightness
Lack of unpleasant odors
Septic tank inlet and outlet
Unilos Astra Service Rules
Unilos Astra is a container of a certain volume, the walls of which are made of 2 cm thick polypropylene. Its volume depends on the ability to serve the needs of a certain number of residents. These data are indicated directly in the name, for example, aster 5, aster 8, etc.
To install the equipment, it is worth choosing a convenient place, given that it will stand there for 50 years
The unit has a cover with a fungus through which air enters. She is insulated. The container itself is equipped with stiffeners and is divided into 4 compartments. In each of them there is a separate process for cleaning wastewater.
First, contaminated water enters the 1st compartment, where there is a filter for large fractions. Everything is defended here.The effluent is then pumped into the second compartment, where aerobic bacteria are taken for it, turning the waste into activated sludge.
The unit has an instrument compartment. Here is its smart part, which has an IP 55 rating, which will withstand splashing water (+)
In the third, the older sludge settles to the bottom and settles, while the new one, floating in the upper part, returns to the second compartment for reprocessing. In the fourth, there is an additional post-treatment of water and its output to the outside. It is 98% pure and completely safe.
Electricity is used to power the septic tank. The equipment itself has a pump, pipes and tubes, a fat and hair trap, filters, a circulator and a recirculator.
Air tubes are recommended to be changed every year and cleaned every 3 months. This will ensure the smooth operation of the system.
The bacteria needed for the processing of wastewater do not need to be purchased separately. They, as a rule, originate themselves in the process of operation. Moreover, it takes 2-3 weeks or even a whole month if the equipment serves the appropriate number of residents.
When connecting the system, it is not necessary to put bacteria inside. It is advisable not to throw anything directly into the septic tank - waste must flow through the sewer pipe
If desired, you can accelerate the emergence of aerobes. To do this, buy special bacteria marked start. They are diluted in water, according to the instructions, and flushed down the toilet. In the future, you don’t need to buy anything - Unilos Astra is self-sufficient equipment that provides itself with aerobes.














































