Overview of the septic tank "Unilos Astra": we analyze the advantages and disadvantages + consumer reviews

The Russian company SBM-Group is developing a closed-type treatment system that completely processes domestic wastewater entering the outside and removes safe water and sludge. Positive reviews managed to earn their septic tanks Unilos, which are represented by three collections: Mega, Astra and Grief. In the private sector, the most popular was the septic tank unilos astra, because in comparison with Western counterparts, this design practically does not require human intervention during operation. With proper installation, the owners will look into the septic tank no more than two to three times a year to clean silt deposits. We’ll study the Unilos Astra series in more detail so that summer residents who are considering installing a septic tank instead of an outdated closet have a complete picture of the pros and cons of this design, and also understand how the system works.

Design features of a septic tank from Unilos

This septic tank is a single container, inside which the complete process of wastewater treatment takes place. The casing is made of environmentally friendly polypropylene, resistant to chemical reactions and soil pressure.

The walls of the septic tank are equipped with stiffeners and welded using a unique technology in which the substances combine at the molecular level, forming a solid structure with high mechanical strength. The thickness of the body is 2 cm, so in many cases it does not require concreting the base.

Inside the case there is not a single mechanical unit, which significantly improves the strength of the structure.

Read about the general principles of operation of septic tanks and their device in our next article:https://aquatech.tomathouse.com/en/kanalizaciya/septiki/septik-stroy/kak-rabotaet-septik.html.

Internal structure of the system: compartment functions

If you look inside the septic tank, you can see 4 compartments that are interconnected by airlifts (the so-called overflow devices). Airlifts are plastic tubes where the drains are driven by air purging.

Due to the presence of all sections in one building, the septic tank Unilos Astra does not require much space and is installed without the use of heavy construction equipment

Compartment # 1 - Receiver

The first compartment is the receiver, which drains from sewer pipes. In this chamber, all contents settle, the water brightens, and solid particles precipitate.

Compartment # 2 - aeration tank

In it, the effluents go through the stage of processing by aerobic bacteria, and it is completely unnecessary to replenish the septic tank with them. They reproduce well in the contents, and to accelerate this process, the chamber is fueled by oxygen. At Astra, the method of intermittent aeration is used, due to which nitrates that have fallen into the effluent are destroyed.

Compartment # 3 - secondary sump

In the third compartment, all silt particles are divided into old and fresh. Fresh ones are lighter in weight, so the system sends them back to compartment No. 2 so that they go through a couple more stages of cleaning.The old sludge settles and then goes to a separate receiver at the bottom of the compartment, from where it will have to be periodically removed.

Compartment # 4 - water treatment sump

The last compartment finally cleans the water from suspended particles and displays it out. A pump can be connected to it, which will forcibly remove water to the desired place for the owner.

The purified water leaving the fourth compartment is discharged directly into the ground through a tank without a bottom, so the owners will forever forget about the calls of the dump truck

Today the market offers a huge number of septic tanks of various designs and volumes. If you are busy with their selection, you may find the material about Termit septic tanks useful:http://aquatech.tomathouse.com/en/kanalizaciya/septiki/septik-termit-montazh.html

Lineup of septic tanks Unilos Astra

Capacity Classification

On sale, septic tanks are designated as “Astra-3”, “Astra-10”, etc. A number is a pointer to the number of residents this system can serve. For example, for a family of 8 people, installation under this number is needed.

For the private sector are designed models for 3-15 people. Septic tanks from Astra-15 to Astra-40 are able to serve a complex of buildings: a house, a bathhouse, a summer kitchen, etc., or a multi-family house. Septic tank models from 50 to 150 are installed in cottage villages, small hotels, restaurants, etc.

Choose a model of the septic tank Astra based on the size of the family. Excess capacity and capacity will result in high energy costs

Naturally, the larger the capacity, the higher its performance.

Modification of the "Astra": depends on the depth of placement

Depending on how deep the septic tank will be placed, it is produced in three versions: standard, midi and long.

"Astra" Standard - used at minimum depths if the supply pipe is connected 60 cm or less from the ground

"Astra" Midi - designed for installation in which the pipe will be located 60-90 cm from the ground

"Astra" Long is designed to connect the pipe 90-120 cm from the soil surface

The septic tank Unilos Astra is immersed in the soil so that its top cover is flush with the soil, and then decorate if the landscape requires it.

Additional equipment

To the septic tank, the company offers additional devices of the following type: after-treatment unit and built-in KNS.

Post-treatment unit. It is used if necessary to maximally clean the outgoing water. It includes:

• a pump that will pump water;
• apparatus that disinfects water with ultraviolet light;
• cavitation block, ultrasonic cleaning liquid;
• filtering installation.

After such a “sterilization”, water can be safely allowed into huzhuda: water the garden and flower garden, fill the pond, etc.

Built-in SPS. It is used in situations when the water leaving the septic tank is not allowed to drift, but is forced to drain in a specific place. Together with the pumping station, this unit is equipped with a fecal-type drainage pump and an alarm system.

In addition to this septic tank, the Topol system is also in demand. You will find a review with reviews in the following material: http://aquatech.tomathouse.com/en/kanalizaciya/septiki/septiki-otzyvy/septik-topol.html.

How is this septic tank serviced?

With constant use of the system, the following maintenance of the unilos septic tank is recommended:

• once a quarter - removal of sludge, cleaning of filters, hair trap.
• once a week - visual inspection of the condition.

To understand whether it is time to remove sludge, you need to look at its color and density. If the sediment is brown, then it is fresh. Darkening and density indicate the need for cleaning.

Note! Maintenance of the septic tank is convenient and simple, because the hinged top cover is always in the access area and you can look into it at any time.

The disadvantages of this system

If you analyze the reviews that users of the septic tank Unilos Astra leave on the forums, then their complaints are very insignificant.Most often complain about:

• high cost of a septic tank;
• its dependence on electricity;
• the inability to install at low temperatures (more than -10 degrees), as the plastic becomes brittle;
• in the northern regions, additional external foam insulation is required;
• during operation requires the replacement of aerators, tubes, airlifts.

Here is a review from one of the buyers: