Septic tank Unilos Astra: characteristics and negative reviews

Most often, the sites of country houses do not have centralized drainage, so the owners have to build a local sewage system. Until recently, this problem could only be solved with the help of a cesspool or a homemade septic tank.

Today, home owners can purchase ready-made cleaning stations that only need to be installed. One of the popular models is the Unilos Astra septic tank, developed by the Russian company. The device perfectly cleans drains and does not require human intervention during operation. Those who are thinking about purchasing such a station are advised to familiarize themselves with the principles of its operation and consumer reviews.

Characteristics of the Unilos Astra septic tank

Astra treatment stations are among the most efficient and most modern VOCs. Structurally, the septic tank is one container , inside of which there are four compartments.

The housing of Unilos Astra equipment is made of environmentally friendly polypropylene, resistant to soil pressure and chemical reactions. Its walls are two centimeters thick, which makes it possible not to concrete the base during installation. In addition, the body is equipped with stiffening ribs, and its walls are welded using a unique technology. Due to this, the structure has high mechanical strength.

Operating principle of the Astra septic tank

The four compartments of the structure are interconnected by overflow devices or airlifts, into which wastewater is forced .

  1. First of all, all wastewater from sewer pipes enters the receiver or the first compartment. Here the masses settle, solid particles precipitate, and the water becomes lighter.
  2. In the second compartment or aeration tank, the wastewater is processed by aerobic bacteria. During operation, there is no need to replenish the device with bacteria, since they multiply themselves in its contents. Unilos manufacturers used the intermittent aeration method in the septic tank, with the help of which nitrates released with effluent are destroyed.
  3. In the third compartment or secondary settling tank, the silt particles are divided into fresh and old. Old sludge is heavier in weight, so it settles and goes to the bottom of a separate receiver. Light fresh sludge is sent back to the second compartment by the system.
  4. The fourth compartment or clean water sump finally purifies the water and removes it to the outside. If you connect a pump to this compartment, the water can be discharged to the desired location.

Advantages and disadvantages

Astra cleaning systems can be used in any climatic conditions. The stations have a large number of advantages , among which are:

  1. Cleaning quality that reaches 98%.
  2. Ease of installation and maintenance of equipment.
  3. Compact size. This allows you to allocate a small area for installing a septic tank.
  4. The strength of the model body. The thick walls of the equipment can withstand heavy loads and provide VOCs with good thermal insulation.
  5. Resistance of the housing to corrosion and ultraviolet radiation. In addition, the station is equipped with a decorative ground part, which does not spoil the appearance of the site.
  6. A large assortment of models, among which you can choose the most suitable one for a specific area and number of users.

For all their advantages, Unilos models have several disadvantages:

  • septic tanks are equipped with a compressor, therefore they are energy dependent;
  • the design of the VOC is quite complex, which makes the probability of its failure much higher than the probability of failure of a simple purification system;
  • Compared to conventional septic tanks, Astra treatment stations are quite expensive;
  • systems with biological treatment require constant operation, and therefore are not suitable for houses with temporary residence of owners.

You should know that VOC Astra, after a power outage, begins to work like a regular septic tank. That is, its work does not stop, but the quality of wastewater treatment decreases.

Specifications

Septic tank Astra 3 has the following technical characteristics:

  1. Daily productivity 0.6 m³. This is enough to serve a small family (no more than 3 people), since sanitary standards provide for an average water consumption per person of 200 liters (0.2 m³).
  2. The maximum salvo discharge of the station is 150 liters. This means that the installation is quite capable of handling waste from a toilet, washbasin, kitchen sink, shower stall and even washing machine used in one day.
  3. Station dimensions – 2030 (height) x 1120 x 820 mm. This is a fairly compact installation for which it is not difficult to find a suitable place for installation even in a small area.
  4. Unilos 3 weighs only 120 kg. This means that when installing this model you will not need to resort to the services of special equipment.

Attention! The installation is designed to deepen the supply sewer pipe no more than 60 cm. If the pipeline on the site is located below this indicator, then it is recommended when selecting to pay attention to other modifications of the septic tank, for example, Astra 4 or Astra 5.

The biological treatment station is equipped with the following electrical equipment:

  1. Compressor power 40 W.
  2. Pump.

Model range of septic tanks Unilos Astra

Astra stations have many models that differ in performance and capacity . The performance of the system is selected based on the number of people who will constantly use it. To do this, just look at the digital index of the equipment, which indicates how many users this model is designed for.

The most popular septic tank models are LOS Astra-3 and Astra-5, designed to serve families of three and five people, respectively.

Cleaning systems from Astra-15 to Astra-40 are installed for multi-family houses or where several buildings need to be served (summer kitchen, bathhouse, house).

Yuntlos station models from 50 to 150 are capable of serving small hotels, cottage villages, restaurants, children's camps, etc.

When choosing a model for your family, you need to proceed from the number of consumers. After all, the greater the capacity and productivity of the septic tank, the greater the energy costs.

Installation

Astra 3 station, as a rule, is delivered to the installation site assembled. In some cases (when the rules for transporting large cargo do not allow), the septic tank body is transported without a neck. The hole for the inlet pipe is cut and sealed directly on site.

Installation of the septic tank is carried out in the following sequence:

  • a pit is prepared and the station is lowered into it;
  • backfilling is carried out;
  • electrical devices are connected;
  • inlet and outlet pipelines are connected;
  • insulation is carried out;
  • The septic tank is started and its operation is checked.

All these manipulations have a number of technical nuances. They are well known to specialists. However, for a person who has decided to install a station on his own for the first time, it would be useful to learn more about the installation process.

You can watch the video or read the description of the Astra 5 model to see how the Astra 3 septic tank is installed.

Reviews of the septic tank Astra (Unilos)

On the Internet, users leave mostly positive reviews . There are practically no negative reviews about this station, which indicates its efficient and high-quality work.

Previously, we used a cesspool on the site, which, of course, smelled. Moreover, the smell was there both with the septic tank and without the septic tank. We took the plunge and installed Unilos Astra-5. Our first service was carried out by specialists. I spied on them, asked around for a few things, and now I do everything myself. The station has been installed for three years now, there is no smell, everything is fine.

Victor, Kaluga region

We live in the Tomsk region, so we were afraid that in winter frosts the outflow would freeze. Of course, it is necessary to insulate, but it was still a little scary. As a result, after numerous consultations, the problem was solved using a heating cable, which was laid inside the drain pipe. It maintains a constant temperature and the system is not afraid of any frost. Of course, there are additional expenses, but Siberians will understand me, because our cold weather is the main problem.

Gennady, village Basandaika

In July last year we bought Astra-3. We installed the system ourselves, since the instructions for it are quite accessible. I had to tinker a little, but everything worked out. The system operates quietly and the water comes out really clean. The unpleasant smell that came from the cesspool disappeared from the house. There was only one negative - the compressor burned out . But this is due to a power surge. Everything was replaced under warranty, so the sewerage works, everything is in order. I recommend this sewer cleaning system to anyone who loves the comfort of a private home.

Victor, Ekaterinburg

I am writing a negative review about the Astra septic tank, since our family cannot make “friendship” with it. After reading good reviews about this cleansing system, I decided to install the same one for myself. However, the quality of cleaning is poor , since sludge is not formed in sufficient quantity.
It turns out that during operation (at least at first), the ratio of fecal and soap drainage must be 5:1. We get a lot more soapy stuff. So what should I do? Are we not allowed to wash and do laundry? Olga, Tver

Water quality control

The water flowing out of the outlet pipes of the biological treatment station should not have an unpleasant odor during normal operation of the installation. Upon visual inspection, it should be clean and transparent.

The cause of cloudy water at the outlet may be:

  • insufficient amount of activated sludge in the installation (this situation happens if the station has not yet entered normal operation);
  • a sharp decrease in wastewater temperature;
  • large amounts of chemicals entering the sewer system;
  • damage to air distribution communications inside the station (bacteria die from lack of oxygen);
  • insufficient supply of fecal wastewater as a result of miscalculations in selecting the capacity of the installation.

Weight

How much does the structure weigh?
Comparing septic tanks by weight is the most difficult. On the one hand, it is good if the structure weighs a lot, since it will be easier to fix it in the ground and the likelihood of it moving is lower. On the other hand, it will be more difficult to install such a system, and if one day it does move due to the buoyancy of the soil or other nuances, then it will be much more difficult to return it to its place.

When installing, the septic tank must be secured to the ground. Even if the structure weighs a lot, it will shift in the ground, which can compromise the integrity of the pipes. The best solution is to entrust the installation of the septic tank to professionals. In addition, they guarantee their work.

As for our competitors, the easiest one is Unilos Astra. He weighs only 120 kilograms. Eurolos and Biodeka are a little heavier. They weigh almost the same, just over 130 kilograms. Tver is another 10 kg heavier, and the record holder is the Topas brand product. It weighs 215 kilograms and this must be taken into account during installation. Putting such a unit into a pit without the help of special equipment will not be easy.

Ratings

Unilos Astra: 5.0, Eurolos: 5.0, BioDeka: 5.0, Tver: 4.0, TOPAS: 3.0

Tver 0.75 NPNM

Several pumps in the system

A septic tank of maximum deep cleaning with two forced pumps that distill the liquid into separate containers for its further use. A convenient system that is easy to clean, without the need to completely remove the equipment. Rating participant:
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Performance

How much liquid is processed per day?

There is a sanitary standard according to which the size of the septic tank must take into account the number of people living in the house. The calculation is based on the fact that each resident discharges 200 liters of liquid every day. Of course, the parameter is conditional and it is very difficult to achieve such a value. In any case, manufacturers try to adhere to the norm.

Accordingly, most models have a capacity of 0.8 cubic meters per day. With the exception of two septic tanks from our list: Tver-0.75 PN and Unilos Astra 4. Their value is slightly lower - 0.75 cubic meters. This is not fatal and also meets the standards, so you can safely install a septic tank without fear of sanctions from sanitary services. But, as they say, the reserve does not last a pocket, and the larger the specified parameter, the better. Yes, the difference is small, but it is there, which means that models from Eurolos, Biodeka and Topas, although not by much, outperform their competitors.

Ratings

BioDeka: 5.0, Eurolos: 5.0, TOPAS: 5.0, Tver: 4.0, Unilos Astra: 4.0

Eurolos BIO 4

Best price

The cheapest polypropylene septic tank for deep cleaning, costing about 10% less than its closest competitors. The model also features convenient installation and a large number of fastening modules, including at the bottom of the tank. Rating participant:
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Rating
( 1 rating, average 4 out of 5 )
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