What is the best septic tank? Which septic tank is better for a country house with permanent residence. What to consider when choosing a septic tank

In the absence of the ability to connect to a centralized sewage line, the owners of country houses have to take care of arranging local wastewater treatment systems. Septic tanks can help with this without affecting the environment. There are many types of such devices. Therefore, those who decide to install a local sewage system in their area have a question about whether to choose.

The main classification of systems for the disposal of wastewater from a private house is based on the principle of operation.

1. Storage tanks are the easiest option. They are sealed containers. In these containers, sewage enters and accumulates there, which must be pumped out, periodically calling a sewage truck.

   

2. A septic tank with post-treatment carried out in the soil is a fairly simple option for treating wastewater. Such stations are formed by 1 or 2 reservoirs, in which large particles are deposited and pollutants are decomposed without oxygen. The degree of purification in anaerobic devices is not very high, water cannot be discharged into the environment. For this reason, it is necessary to equip a soil post-treatment stage, where the remnants of contaminants will linger in the filter bed.

   

3. A feature of biological aerobic treatment plants is an additional stage of wastewater treatment by microorganisms in the presence of oxygen. To do this, a compressor is built into the septic tank, which pumps air.

   

   

Note! It is necessary to choose a place on the site for the placement of septic tanks that carry out aerobic or anaerobic wastewater treatment, taking into account sanitary rules.

There are ready-made versions of various companies on the market, but with certain skills, you can make them yourself, for example, from concrete rings. The material, along with the design and other important parameters, is one of the factors that are taken into account when choosing a septic tank.

Online calculator for the required volume of a septic tank based on the number of inhabitants and the mode of water use

Living in an apartment and having access to a central sewer, we most often do not think about how the human waste disposal system is arranged and organized. But in the case of building a private, detached house, the question that sounds like “choosing the best septic tank for a country house” takes one of the leading places in creating comfortable living conditions.

Choosing the best septic tank

It is most convenient to divide septic tanks intended for installation in a private housing stock into types depending on:

• operating principle:
• materials that were used in its production;
• shape of containers and methods of installation and installation.

In general, in a country house or a capital private house, it is quite possible to install any type of septic tank, from the simplest accumulative to complex systems that carry out complete cleaning. The choice of a septic tank depends only on your financial capabilities and personal requirements and wishes for the operation of this system.

Storage (cesspool) tanks

This septic tank for a country house is simply a more perfect cesspool. All waste enters a sealed chamber, where it is separated into fractions (heavy remains at the bottom, light - on the surface).

This is the simplest system that does not require complex manipulations during installation and installation, it does its job perfectly, but it has one significant drawback. This is the need for frequent cleaning with a cesspool. For this reason, storage tanks perform best when installed in houses with a small number of residents (1-2, maximum four people) and where people do not live all year round.

Otherwise, it is better to look at more complex systems that provide some self-cleaning.

Overflow septic tanks

These systems are settling tanks with soil post-treatment of wastewater. They are designed not only for the collection and accumulation of waste, but also for partial processing and cleaning.

Overflow septic tanks are designed for houses with permanent residence with moderate water consumption. The services of a sewer during the operation of these systems will need to be used much less frequently, a maximum of two to three times a year.

How does an overflow septic tank work?

They consist of two chambers, one of which receives house drains, and the other plays the function of a sump.

After separation into fractions in the first chamber, liquid waste enters the second. In it, with the help of special bacteria, cleaning and partial processing of organic substances takes place. The water here is purified up to 70%.

In the future, this water can be used for watering household plants or simply discharged into a reservoir. Before being discharged, the water must necessarily undergo additional purification, flowing through a special rock. You can equip it with gravel or crushed stone with the addition of sand. Such a breed will work on the principle of a mechanical purification filter, and almost pure water will enter the reservoir.

This type of septic tank has several distinct advantages:

• it is very easy to maintain and install;
• has a long duration of action;
• most of the effluent is recycled within the system.

But besides the pros, there are also cons. An overflow septic tank for a house cannot be installed in clay soil, which will not allow normal water discharge due to its very low throughput. Also, if the first aquifer is not deep, then this can also create problems when organizing a treatment system.

Biochemical septic tanks

These septic tanks are systems for deep biological waste processing. A septic tank is great for a permanent residence and is able to process large volumes of incoming wastewater, it can purify water by almost 100%.

Structurally, they consist of three chambers:

• the first chamber is designed to separate incoming substances from house drains;
• in the second chamber, biological purification of water takes place with the help of bacteria;
• and the third chamber is designed for chemical disinfection using special chemicals.

Biochemical septic tanks are superior to their previous counterparts in almost all respects:

• wastewater treatment is higher than that of other analogues, by almost 100%;
• during the operation of these systems there are no unpleasant odors;
• for installation and installation, the type of soil on the land plot does not matter;
• very fast installation and installation;
• the system is practically maintenance-free.

These septic tanks for a country house require cleaning from dry residue no more than once every 5-8 years, depending on the number of people living in the house and the activity of using the sewer. These are the most successful septic tanks for summer cottages with a high level of water consumption.

The only drawback of biochemical septic tanks is their high cost, which is much higher than that of simpler counterparts. But for a house with a permanent residence, this option will still be the most successful.

Also, since for the normal functioning of the microflora of bacteria inside the system, a constant supply of nutrients is necessary, it must be remembered that septic tanks with biological filters cannot be installed in houses where people do not live for permanent residence, and there are long interruptions in the use of sewage.

Having dealt with the main types of organization of septic systems, then you should pay attention to certain parameters, based on which it is worth choosing one or another system.

Overall system performance

Naturally, the need to process various volumes of wastewater will be the main parameter when choosing the system that needs to be installed in the house.

A small house, where 1-2 people live, is very different in terms of the amount of waste produced from a capital house or cottage, where a whole large family lives. You should also consider, in addition to the house, such additional points as the presence of a pool, washing machines or dishwashers.

Typically, the calculation is based on the following parameters:

1. Stock water up to 1 cu. meters. In this case, a conventional storage septic tank will suffice, the device of a more expensive and complex system does not have a special meaning;
2. Stock water volume from 1 to 10 cubic meters. meters. With such a volume, the installation of at least a two-chamber septic tank is already very desirable. Especially if consumption is closer to the upper limit of this range;
3. Stock water with a volume of more than 10 cubic meters. meters. With this volume, the installation of a septic tank with deep biological treatment is strongly recommended. Otherwise, the operation of the sewer system will definitely involve some inconvenience.

Important! Correctly calculate the amount of incoming waste. SNiP establishes a clear minimum volume of a septic tank, which must accommodate effluent flowing within three days.

Keep in mind! An incorrect calculation or an excessive desire to save money will lead to the fact that you will have to use the services of sewers too often. This procedure is usually quite expensive. As a result, your small-volume septic tank can turn out to be more expensive than even three-chamber biochemical treatment systems.

Materials from which septic tanks are made

Also an important factor when choosing a septic tank in the house will be the material for the manufacture of treatment systems.

Here you can go in several ways, which differ from each other in the ratio of cost and labor costs for the organization.

Septic tanks made on site, which one is better to choose? They are usually made from the following materials.

Brick

You can choose a septic tank made from this simplest and cheapest material. However, due to the peculiarities of the brickwork, it is quite difficult to ensure its complete tightness, which is why sewage can seep into the ground and further into the aquifer. To avoid leakage, cement mortars or special mastics can be used.

Reinforced concrete

A somewhat more laborious material to work with, but at the same time extremely reliable. For bulk prefabricated structures, reinforced concrete rings are most often used. When using rings, the main task will be to ensure complete tightness of the joints between them.

improvised materials

Oddly enough, it is quite possible to make a normal septic tank using improvised materials that most people simply find at home. The only thing is that the volume of such a septic tank will hardly be more than 300 liters, which is suitable either for a summer cottage or for a house with a very small amount of wastewater. Schemes for manufacturing such a system are a topic for a separate article, but if you wish, you can always find them in large numbers on specialized forums on the Internet.

Naturally, the most reliable, fastest and most convenient way (and the most expensive) is to purchase and install a ready-made system, usually made of plastic or fiberglass.

• they provide absolute reliability and tightness in operation;
• you can choose any range of volumes, ranging from a small country house to a cottage for 5 people with a swimming pool and irrigation systems;
• ready-made septic tanks provide quick installation and instant commissioning;
• they are already equipped with all the necessary cleaning and filtration systems; you don't need to think about anything else.

Note! Septic tanks made of polymeric materials must be installed in concrete pits without fail and the container must be fixed to the walls of this pit. This is done to protect the septic tank from surfacing when exposed to groundwater, as well as protection from destruction when the soil moves.

How are septic tanks installed?

In general, two types of installation can be distinguished, depending on the design principle of the septic tank:

• vertical systems;
• horizontal systems.

Vertical septic tanks are installed with a recess in the ground and are the most successful design if you do not want to see additional elements on your site. It will be completely in the ground. The downside here is that if on the land plot the movement of underground groundwater occurs close to the surface, then in this situation, in order to install such a product, additional installation efforts, special special equipment, etc. will be required.

Horizontal septic tanks are installed on the surface and do not require heavy equipment or any great effort during installation. But at the same time, if you are making a system for permanent residence all year round, then most likely it will be a rather voluminous device that will take up a significant amount of space in your backyard. Plus, if you are planning any landscape design, then it will also be problematic to enter the presence of a septic tank into it.

Which septic tank to choose

As a result, we can unequivocally say that the choice of which septic tank is best for a country house is an extremely responsible matter, which will significantly affect the quality of living in general.

Important! Be very careful about the accuracy of calculating the needs for wastewater treatment, and which septic tank to choose in the end. It is better to install a system with a margin now than to deal with a complete rebuild later, which, moreover, will definitely be much more expensive.

But on the other hand, when you understand for sure that your consumption is minimal, and there are definitely no plans for an increase, then there is no point in overpaying for complex systems that will work at ten percent of their possible potential.

In a small country house, in which a long stay is not planned, you can make a small septic tank with your own hands, for example, from car tires or other materials that you found in your country house or garage. This option is likely to cost almost nothing at all. Just do not forget, properly, to take care of good sealing.

Also, do not chase the most expensive imported models. Our Russian manufacturers make products of excellent quality, in no way inferior to their foreign counterparts.

One of the most popular manufacturers in our market at the moment is the products of the domestic company Topol-Eco Neva, which has been operating since 2001. The main models from which you can choose the best septic tank that is right for you are:

• TOPAS;
• UBAS;
• ASTER;
• TOPOL;
• EUROBION;
• BIOXY;
• TANK;
• and many others.

The lines of this manufacturer fully cover all any possible needs, ranging from small houses to large families for 4-5 people. There are also special septic tanks designed to provide life for people who live in much larger groups (from 10 or more people).

Follow these simple tips, talk to experts, contact any thematic forum, and you will solve the question “how to choose a septic tank” without any problems.

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These data confirm the need to define personal criteria when looking for the best septic tank for a summer residence. In addition to the above information, you should pay attention to the following data:

• Real volume of drains (normal/maximum).
• The possibility of careful maintenance, ensuring uninterrupted power supply.
• Proposed method of installation (independent / with the help of specialists).
• Ground water level.
• The thickness of the earth layer above the hull and the corresponding loads.
• Ease of passage of equipment for the extraction of accumulated effluents.

Important! The best septic tank performs its functions without unnecessary difficulties and high operating costs. For an accurate assessment, all significant factors are analyzed in combination.

Regardless of the specific form (drawing with dimensions, or a set of documentation in accordance with GOST), the materials must contain information not only about the septic tank. They indicate the number and parameters of straight pipes and other fittings, hoses and hatches for. Electric actuators are equipped with overheating and surge protection devices. Submersible supplement with convenient lifting devices for inspection and repair.

After a thorough study of all the nuances of the project, they make the necessary adjustments to the equipment requirements. Make an accurate list of the main components of the system and add-ons, building materials, tools. This work will help clarify the amount of future financial and labor costs.

Related article:

The article tells how to make . Description of construction requirements is supplemented with reviews of effective technologies and finished models with characteristics and prices. This information will help to implement the project quickly, at a reasonable cost.

The current rating of the best septic tanks for a country house

To determine which is the best septic tank for a summer residence, the current rating is supplemented with consumer reviews. Useful data on warranty, operating instructions.

Topas

A significant advantage of this brand is the specialized production of various treatment facilities:

Model	Productivity, (m3 per day) / Permissible volume of one-time discharge (m3)		price, rub.	Notes
Topas-S4	0,8/125	95 x 97 x 2.5/215	78500-86500	Compact system with one compressor.
Topas 4 PR	0,8/175	88 x 97 x 260/225	95200-108900	Equipped with two compressors for active aeration of the compartment with aerobic microorganisms.
Topas 8 Long OL	3/1025	230 x120 x310/715	251000-268800	Installation to meet large needs (up to 15 users). Such equipment is suitable for equipping large real estate objects.
Topol-Eco TOPAS-S 8 Pr	1,3/-	-	110900-115300	Equipment for deep cleaning with five working chambers. Energy independent execution.

Note! On the official website, you can buy a Topas septic tank inexpensively from the manufacturer. The price in the price list is not increased by the profit of intermediaries, so you can count on quite reasonable offers.

According to a separate request, the company creates complex-type treatment facilities, specialized sets:

• In the line "Toplos" modifications are presented:
  • "Aqua" - for cleaning liquid from open reservoirs;
  • "KM" - container type installation;
  • "FL" - equipment for the detention of organic matter.
• Cleaning of fatty impurities will be performed by Toppolium.
• The Toprain kit is designed to equip gas stations and car workshops.

With the help of the above products and other products of this company, it is possible to solve specific tasks at a reasonable cost. When selling, the price with a turnkey installation includes delivery and installation. This data will help clarify the amount of real investment.

Tank

Treatment facilities under this trademark are produced by Triton Plastic. Currently, this company offers the following range of country septic tanks Tank. The price in the table is as of August 2017:

Model series "Tank"	Productivity, (cubic meters per day)	Length x Width x Height (cm) / Weight (kg)	The price of one / three products, rub.
1	0,6	120 x 100 x 170/85	22700/17000
2	0,8	180 x 120 x 170/130	32800/27500
2,5	1	203 x 120 x 185/140	37900/32500
3	1,2	220 x 120 x 200/150	44700/39500
4	1,8	360 x 100 x 170/228	59000/54000

Note! If you choose a septic tank, owner reviews should be studied with a duration of operating experience of at least several seasons. This will allow obtaining objective information, taking into account regular additional costs in economic calculations.

The manufacturer gives the following advantages of products in this series:

• Their design is well developed in practice, taking into account the opinions of real users.
• This equipment performs its functions without power consumption and associated operating costs.
• It can be installed in any soil.
• We allow installation without concreting the base and rigidly attaching to it using anchoring.
• Good tightness is useful at high groundwater levels.

Important! In official instructions, the company notes the need to remove bottom sediments during seasonal living (in autumn, before preparing the dacha for winter). If the property is used constantly, such a procedure is needed no more than once every 5 years or less. For the decomposition of sediments, special sets of microorganisms are used.

The prices indicated for the Tank septic tank are for the capital and the Moscow region. Discounts are provided not only for the number of purchased products. They are valid when ordering professional installation (+12400 rubles).

Triton

The same manufacturer produces other polymer products. Under the Triton brand, the following series are presented on the domestic market:

• "H" - storage tanks for waste with a volume of 1000 to 27000 liters, costing 24800-426000 rubles.
• "T" - traditional in design septic tanks of three separate chambers.
• "P" - tanks for fire fighting systems.
• "K" - caissons
• "PM" - fat retention devices for installation under.

This kit is suitable for installation in the country. The wall thickness of these products is from 10 to 15 mm, which provides good resistance to mechanical stress. Technical data are shown in the table:

Such a set is not difficult to transport and install yourself. As standard, the manufacturer includes a neck and caps. It is not necessary to purchase an infiltrator. Instead, you can apply , a filtering field.

Termite

Septic tanks under this brand are created by Multiplast. This company produces products from polymers using vacuum and rotational forming technologies. The presence of our own design departments allows us to respond in a timely manner to market requirements. Equipped with modern equipment, production ensures cost minimization and excellent quality. It is acceptable to manufacture solid-cast containers with a volume of up to 10 thousand liters.

The manufacturer emphasizes that only primary raw materials, high-quality polymers are used for the manufacture of cases. One-piece casting and radial end lugs help maintain structural integrity even under heavy loads. The technical characteristics of products are checked by a series of special hydrodynamic tests.

Model series "Termite"	Productivity, cbm per day	Tank volume, liters	Length x Width x Height, cm	Weight, kg	Notes
Drive 1.2	0,4	1200	134 x 116 x 156.5	80	storage capacity.
Pro 1.2	0,4	1200	134 x 116 x 156.5	80	The most compact septic tank with additional soil cleaning. Wall thickness - up to 20 mm.
Transformer 1.5S	0,6	1500	200 x 80 x 200	110	This equipment can be converted into a cleaning station with forced air supply. Proprietary Aeration Kit Offered
Pro 2.5	1	2500	200 x 115.5 200.5	135	Suitable for a family of 5.
Transformer 2.5PR	1	2500	205 x 105 x 211	155	Such a septic tank can be used.

Note! When buying a turnkey Termite septic tank, the price includes installation work. But you need to make sure that these services are available for a specific region. Otherwise, you will have to organize the installation of equipment on your own.

Unilos

The current production line includes two series of classic septic tanks:

These are complete cleaning stations, which differ in the following characteristics:

• Polymer foam walls (polypropylene) create a layer of insulation that prevents the harmful effects of changes in outside temperature.
• For forced air supply, membrane technology is used here, which helps to extend the life of the aerator to 10 years or more.
• Removal of excess silt (it is used as a fertilizer) is carried out using a standard airlift.

You can purchase a suitable station, taking into account the required distance from. The following restrictions apply when constructing a route:

The price of a Unilos Astra 5 septic tank (76-83 thousand rubles) cannot be called too high, given the good consumer characteristics. This equipment provides a full satisfaction of all needs for draining for a family of 4-5 people. It retains functionality during salvo discharges up to 250 liters. Electricity consumption does not exceed 60 W per hour.

Aqua Bio

These treatment facilities are capable of processing from 0.7 to 1.5 cubic meters. stocks in 24 hours (5-10 users). The body thickness increased to 25 mm allows it to withstand heavy loads without damage. The manufacturer positions its products as intended for loamy and sandy soils, areas with low groundwater levels. It offers necks of different heights in increments of 100 mm, so choosing the best option is not difficult.

Note! A few years ago, the manufacturer made a rebranding. Now the products of this series are called "BARS-Bio".

Poplar

Modification	Inlet pipe depth, cm	Width x Depth x Height, cm	Processing volume per day, cbm	Permissible volley discharge, l
3	80	112 x 106 x 212.5	0,65	180
5	80	103 x 100 x 248.5	1	250
10	80	192.8 x 112 x 248.5	2	790
50	80	300 x 216 x 300	8,9	1900
150 LONG	140 number of users: 1-36; productivity, m3/day: 0.35-25; depth of the supply pipe, m: 0.3-1.8; withdrawal: gravity and forced; power consumption, W: 40-100. This fact must be taken into account when choosing the appropriate option. In the basic version, the Tver septic tank can be bought inexpensively. But it will be able to perform only the basic functions of a treatment plant. With an expanded configuration, a compressor, pipelines, expanded clay and dolomite backfill, pumps for supplying wastewater and diverting treated water to the relief are added to the composition. Ecopan The production association is the oldest specialized domestic enterprise. The application of the accumulated experience in practice is manifested in good consumer characteristics and reasonable prices. All products of this type are provided with official certificates, a five-year warranty. Model range parameters Units Limit values Number of users Human 2-15 liters 500-3000 Length/Diameter/Height cm 235-525/124-144/144-164 Weight kg 140-3250 Price rub. 66000-178000 Leader This manufacturer creates tanks for local cleaning systems from low-pressure polyethylene. To strengthen the structure, a special arrangement of power elements was used. The relatively low weight simplifies assembly operations. Four stages provide a good level of cleaning. To remove precipitation, the equipment is equipped with an airlift. Model range parameters Units Limit values Maximum one-time reset liters 400-3000 The number of treated wastewater in 24 hours m. cub. 0,2-3,6 Length/Diameter/Height cm 200-480/120-145/150-165 Weight kg 80-300 Power of compressor equipment Tue 40-100 Price rub. 76000-1178000 Note! The prices of Leader septic tanks, as well as similar products from other manufacturers, should be considered taking into account the specific configuration. In this case, we are talking about modern, well-equipped equipment. Comparison of different models The prices below for septic tanks for summer cottages will change over time. However, these data are suitable for objective comparative analysis. Manufacturer/Model Productivity, m3/day Dimensions, cm Weight, kg Price Topol-Eco Group / Topas 5 1 115 x 117 x 250 280 98900 Triton Plastic/Tank-3 1,2 220 x 120 x 200 150 44700 Triton Plastic/Triton-T 2.5 - 120 x 252 - 48000 Multiplast/ Thermite Transformer 2.5 S 1 205 x 105 x 211 145 45000 Unilos/Astra 5 1 103 x 100 x 199.5 250 71600 Granite-M/ Poplar 1 103 x 100 x 248.5 - 83300 TD "Engineering equipment" / Tver - 1 PN 1 300 x 110 x 167 180 112300 Software "Pankom" / Ecopan L5 1 255 x 144 x 164 210 97500 Alexis LLC /Leader 1 1 270 x 145 x 165 150 105000 Note! When creating a septic tank for a house with your own hands, it is necessary to take into account the total cost of construction and ancillary work, the purchase of compressors and other factory products.

Are you looking for a septic tank for a country house and trying to determine which one is better? We compared 17 different types of non-volatile septic tanks at the price and made a brief description of their features.

In this comparison, we are limited to non-volatile septic tanks with a volume of three or less cubic meters, which are designed to serve a house with permanent residence of up to five people. In total, 58 of the most popular models on the market were included in the sample.

Quick reference:
Non-volatile septic tanks - containers with one, two or more chambers, where wastewater is purified due to the active life of anaerobic bacteria (without the participation of oxygen). Bacteria decompose organic waste with the formation of gases (carbon dioxide, methane, nitrogen and others), water and mineral sediment.
: low price.
Disadvantages of non-volatile septic tanks: medium degree of purification (50-80%), slow purification, the need for soil post-treatment of wastewater, the formation of a large amount of sludge and the need for its periodic pumping.

Local treatment facilities (volatile septic tanks) - septic tanks, where the main work is performed by more active aerobic bacteria, which require oxygen for their vital activity. It is delivered by small electric air pumps (aerators) while stirring the activated sludge.
Advantages of non-volatile septic tanks: high degree of purification (up to 98%), faster wastewater treatment, extremely low sludge formation, no need for soil post-treatment.
Disadvantages of volatile septic tanks: high price, the need to connect to the power grid and pay for energy consumption (50-250 rubles / month), periodic maintenance.

How do non-volatile septic tanks differ from each other

Number of cameras

For septic tanks with a volume of less than 5 m 3, SNiP allows only one chamber, but two or more chambers are considered the best option. Due to this, the quality of cleaning is partially improved.

The presence of biofilters

Biofilters are special devices with a developed surface, where microorganisms are fixed, which increase the degree and speed of waste processing. Usually, brush loading (ruffs made of synthetic materials) or various synthetic fabrics are used as biofilters. Expanded clay filling can also be used, through which the purified water passes by gravity.

Opportunities for modernization

Some models can be combined into chains, thereby increasing the amount of wastewater processed and increasing the degree of purification.
Some models have the potential to install aeration units, which will later turn them into high-purity treatment plants (up to 98%) that do not need periodic pumping.

How big should a septic tank be?

Calculating the volume of a septic tank is a separate task. Here the temperature of the water in the septic tank, the concentration of suspended solids, the volume of wastewater and salvo discharges, the speed of processing, and much more matter. It is usually assumed, including based on SNiP, that the average volume of daily wastewater per person is 200 liters. In this case, the drains must remain in the septic tank for at least three days. Therefore, the volume of the septic tank should be taken at the rate of at least 600 liters (0.6 m 3) per permanent resident. And the more, the better.

Table of non-volatile septic tanks

We collected data on 58 popular septic tank models and put them in one table, indicating the main characteristics and the price set by the manufacturer. Since septic tanks have a number of significant differences, below we have added a brief description of their main features so that everyone can choose the model that best suits him.

In short, it is better to take the septic tank that has more cameras, more filters and a larger volume, while having the lowest price. And it is on it that sorting is done in the table. The final choice is yours.

* - the declared cleaning capacity of liters per day. The first digit in parentheses indicates the maximum number of permanently resident people served, calculated using a methodology close to SNiP. The second digit is the maximum number of people declared by the manufacturer.

Comparative description of septic tank models

	Septic tank "Tank" Manufacturer: "Triton-Plastic". The classic version of a septic tank made of polypropylene. At the outlet there is a biofilter with a floating load. The younger model is two-chamber. The rest are three-chamber.
	Septic tank "Tank Universal" Manufacturer: "Triton-Plastic". Modification of the previous septic tank, the volume of which can be increased by installing additional modules.
	Septic tank "Microbe" Manufacturer: "Triton-Plastic". An inexpensive series of compact two-chamber septic tanks with a relatively low degree of purification.
	Septic tank "Triton-ED" Manufacturer: "Triton-Plastic". The simplest vertical two-chamber septic tank with the ability to combine two modules to increase the volume and quality of cleaning.
	Septic tank "Triton-T" Manufacturer: "Triton-Plastic". Three-chamber model with built-in biofilter.
	Septic tank "Flotenk-STA" Producer: "Flotenk". The simplest fiberglass two-chamber septic tank. Increased strength.