Septic tanks are one of the most effective ways to organize autonomous wastewater treatment. These devices are not too cheap, but they are convenient and reliable.
To understand why it is worth or not to install such a device on the site, you should study the principles of its operation. This is what we will talk about in this article. As an actual example, we will use a septic tank to give Tapas.
And also consider in detail the device of such a system, highlight the main pros and cons, give recommendations on the operation and maintenance of the septic tank.
How does a typical septic tank work?
Septic tank is a type of sewer device specially designed for the complete or almost complete processing, clarification and disinfection of sewage wastewater.
The operation of the device is based on the principle of biological treatment. Active oxygen and special bacteria are used as the active component, which decompose effluents into water and neutral sludge.
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Biological treatment station in the country
Wastewater treatment facilities
The device of a septic tank brand Topas
Boxes for installation of equipment
Geological conditions for the septic tank Topas
Distance to the foundation of the house
The distance from the fence to the station
Rules for the location of the septic tank on the site
At the same time, sludge serves as a binding component; inorganic waste that does not lend itself to bacterial processing also settles in it.
The water obtained as a result of purification is usually removed from the device through the earthen filter of the absorption well, the filtration field or otherwise. With the proper level of purification, water can be used to water plants on the site.
Water obtained as a result of wastewater treatment in the Topas septic tank can be diverted to a separate well to be used for irrigation and other technical needs
For processing organics, bacteria are used for septic tanks, which are anaerobic and aerobic. The former live and process wastewater in an oxygen-free environment, which provides completely sealed containers. The second ones work only in conditions of unhindered supply of oxygen.
Regardless of the species, these microorganisms are able to reproduce themselves, so the septic tank does not need regular addition of bacteria to the drains, although in some cases this has to be done.
Conventionally, the septic tank "Topas" is divided into four departments. Air is injected using compressors, and airlift is used to move the drains inside the device
Like any device, a septic tank requires proper care. In particular, accumulated sludge must be removed annually. From a conventional cesspool, septic tanks are favorably distinguished by the fact that the processing process completely neutralizes all unpleasant odors.
If the device is installed correctly and is used in accordance with the manufacturer's recommendations, usually there are no problems with it.
Varieties of designs and model range
To understand the principles of operation of a septic tank of the “Topas” type, you should study its design. Externally, this device is a large cube-shaped container with a large square lid.
Inside, it is divided into four functional sections. There is a built-in device for air intake from the surface to ensure that the effluents are saturated with oxygen.
Septic Topop consists of four interconnected chambers providing multi-stage cleaning. Flowing from one compartment to another, the effluents are settled, processed by bacteria, disinfected and clarified.
Inside the treatment system are the following elements:
- a receiving chamber into which the drains enter initially;
- airlift with pumping equipment, providing movement of wastewater between different departments of the device;
- aeration tank - a department in which the secondary stage of cleaning is performed;
- pyramidal chamber, where the final treatment of effluents;
- a post-treatment chamber; septic water purified during operation accumulates here;
- compressor for air injection;
- sludge removal hose;
- device for draining purified water.
The range of septic tanks of this brand is quite wide. There are models for plots and houses of different sizes, devices designed to service gas stations and even powerful treatment plants that can meet the needs of a small village.
This diagram illustrates the device of the septic tank “Topas". It consists of four different departments, which move the waste coming through the sewer
In private housebuilding, septic tanks “Topop-5” and “Topop-8” are most often used. The number next to the name indicates the approximate number of residents for whose servicing the device is designed.
“Topas-5" has a more compact size and lower productivity, it is able to easily meet the needs of a family of five in sewerage services.
This model is considered an ideal choice for a relatively small cottage. Such a device can process about 1000 liters of effluents per day, and the simultaneous discharge of waste within 220 liters will not cause any septic tank.
The dimensions of Topop-5 are 2500X1100X1200 mm, and the weight is 230 kg. The power consumption of the device is 1.5 kW per day.
But for a large cottage it is better to take “Topas-8”. The size and ability to process wastewater in this model is much higher. Such a septic tank is capable of serving even the areas on which the pool is arranged, although in such a situation the Topas-10 may be more appropriate.
The performance of such models varies between 1500-2000 liters of effluent per day.
The numbers next to the name of the septic tank indicate the number of people that this device can serve while using. Customers are guided by these indicators, choosing the suitable model.
There is also a letter marking that describes the specific operating conditions for which a particular device is designed.
For example, the designation “Long” indicates the possibility of using this septic tank with a connection depth that exceeds 80 cm. Marking “Pr” indicates models with the option of forcing partially pumped out purified water.
Such designs are additionally equipped with a pump. Models marked “Pr” are used in areas with high groundwater levels.
Models of “Topop” septic tanks may vary depending on the volume of treated effluents, as well as on operating conditions. For example, for areas with elevated groundwater levels, it is recommended that you select a septic tank labeled “Pr”
The presence of a pump in the device of this model of a septic tank Topop is intended for installation on a site with clay soils that poorly filter or do not absorb purified water at all. The marking “Us” stands for “reinforced”.
These are more powerful models that should be used if the depth of installation of the septic tank exceeds the level of the location of the sewer pipe by 1.4 m or more.
The higher the pump performance, its power and the more options it has, the more expensive it will be to purchase it, and the more difficult it will be to install it. Therefore, you should not choose a wastewater treatment plant, if in the near future the number of residents in the house should not increase sharply.
More detailed recommendations on choosing a septic tank for a summer residence are discussed in our other article.
The principle of operation of septic tanks "Topas"
Through the sewer pipe, the effluent enters the first receiving chamber. Here, the sewer masses are fermented with the active participation of anaerobic bacteria.
When the level of wastewater in the receiver reaches a predetermined level, the waste begins to be pumped to the second chamber using an airlift.
Waste water enters the receiving chamber, in the second it is saturated with oxygen and processed by aerobic bacteria, in the third it settles, and in the fourth it decomposes into sludge and 98% purified water
In the second section of the septic tank, aeration of wastewater is performed, i.e. their saturation with air, which is necessary in order to activate the work of aerobic microorganisms digesting sewer organic matter.
Bacteria actively process the contents of the sewer, turning it into a mixture of partially clarified and purified water and activated sludge.
After processing in the second chamber, everything moves to the department of the sludge stabilizer - biomass, which is actively involved in cleaning the liquid component of the sewer mass. Here, the sludge settles, and the water released as a result moves into the sump.
To improve the quality of treatment, part of the water and mobile sludge from the stabilizer enters the primary chamber, so that secondary wastewater treatment can be performed.
Thus, the topop septic tank operating scheme provides for the circulation of effluents through the various compartments of the septic tank until the level of treatment reaches the required quality level. This ensures high environmental safety for recycled wastewater.
If the section of the site is composed of sandy soil, then for the discharge of effluents it is better to arrange an absorption well. Its construction is possible only if between the conditional bottom of the filtering well and the groundwater mirror there will be at least 1 meter
At the end of multistage processing, purified water is discharged to the filtration fields or an absorption (filtering) well, where the wastewater is further treated and dumped into the ground.
If it is not possible to arrange a filter well or drainage system, clarified and disinfected liquid can be discharged into the gutter.
If a septic tank is installed in clay soil, the disposal of treated and disinfected effluents is carried out in a sewer ditch
In the absorption well or in the filtration fields, post-treatment is carried out by passing wastewater through filtering soils. In the first case, the post-treatment design is a pit with a permeable bottom, on which a meter-long layer of rubble or gravel with sand aggregate is laid.
The filtration field is a kind of drainage system made up of perforated pipes - drains. Flowing along drains, the liquid component of the effluent is additionally cleaned and seeps through the perforation of the pipes into the surrounding soil.
We also recommend that you familiarize yourself with the laying of the drainage pipe.
When laying all types of sewer pipelines, including the drainage system, it is necessary to take into account the level of soil freezing in the winter so that the sewage does not freeze and create plugs in the channel intended for their flow.
If there is idle land near the site or the suburban estate has an impressive area, the waste disposal system can be performed in the form of drains, which carry out post-treatment and discharge of water into the ground
Advantages and disadvantages of the system
Septic "Topop" has been used in Russia and neighboring countries for more than two decades. During this time, buyers fully appreciated the merits of the septic tank tobas and identified its shortcomings.
Judging by the fact that the demand for septic tanks is not decreasing, the autonomous sewage of this brand can be considered quite reliable.
Thanks to the biochemical scheme of work and multi-stage purification of the septic tanks, Topops process up to 98-99% of organic pollutants, i.e. provide almost complete neutralization.
Installation of the device is relatively simple, it does not require complex preparatory work, such as pouring concrete, etc. It is not necessary to regularly call the truck of sewage trucks, as owners of cesspools are forced to do.
The main part of the “Topas” septic tank is located deep underground, only the lid is visible from the outside, so the presence of such an independent sewage system will not spoil the surrounding landscape
Of course, airlift, compressors and other components require constant access to power. However, the cost of electricity for such a septic tank is relatively small, as well as the total operating costs for its maintenance.
The water obtained as a result of the septic tank can be used for irrigation, and the sludge that accumulates in the tank can be used as fertilizer for the soil on the site, which slightly reduces the cost of not improving it.
Septic is a closed system, so no unpleasant odors of the residents of the house will bother. There is completely no unpleasant noise, since the device is in the ground, and its components and mechanisms are very quiet.
Such a septic tank can be used on almost any type of soil. Like almost any autonomous sewer system, the “Topas” septic tank is underground, i.e. does not damage the landscape of the site.
In case of improper installation or operation of the Topop septic tank, serious damage can occur, to eliminate which you will have to call an experienced master
Such a device does not need serious insulation measures, except in an area with a very harsh climate. Microorganisms in the course of waste processing generate a certain amount of thermal energy, which does not allow the tank to freeze.
The manufacturer assures that, with proper installation and operation, the “Topas” septic tank can last about 50 years.
Among the disadvantages of the device, its dependence on electricity is most often mentioned. If power outages occur frequently and for a long time, then it makes sense to take care of an additional power source.
Another “minus” is the relatively high price, if desired, you can find a septic tank and cheaper. But the positive characteristics and reliability of the device fully justify the cost.
In reviews, sometimes complaints are made about the incorrect operation of the Septic tanks “Topas” or even for breakdowns. In practice, it is usually found out that the owners themselves are to blame for the problems: either the device was improperly installed and launched, or the rules for its operation were not followed.
Installation and Installation Rules
To install the septic tank "Topas", especially its compact models, it is not necessary to invite a specialist. This can be done even without the help of special equipment, although its absence will make the work harder and longer. First you need to dig a pit of suitable size and configuration.
For “Topop-5”, a pit with dimensions of about 1.8X1.8X2.4 m is suitable. For a larger device, you need a large pit. A space of approximately 200 mm should remain between the walls of the septic tank and the soil.
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Stage 1: We select Septic Topas according to the water consumption of the family, purchase and order delivery
Stage 2: We install the body of a sewer station in a pit dug manually or by an excavator
Stage 3: We bring trenches to the septic tank designed for the sewer pipeline, cut out holes at the calculated depth and weld plastic pipes for the input of pipes
Stage 4: We enter the pipe laid from the house or the bathhouse into the sewer station, we remove the pipe from the station to the treatment facility
Stage 5: In the box located in the septic tank, we install and connect the compressors necessary for injecting oxygen inside
Step 6: Connect the septic tank Topas to the power line. If the system needs to stimulate the movement of effluents, install the pump in its intended box
Step 7: Check the horizontal installation level. If necessary, align by adding under the bottom of rubble
Step 8: Checking the health of the systems. After making sure, we fill the pit and trenches with sand, periodically tamping the backfill
Transportation of a septic tank to the country
Installation of the structure in the pit
Insertion and installation of branch pipes for pipes
Pipeline inlet and outlet
Compressor equipment
Power Station Connection
Horizontal control
Sand pit filling
At the bottom of the pit, a sand cushion is being constructed, a rammed layer of 100-150 mm will be enough. Then down and set the capacity of the septic tank. The device should be perfectly aligned to check its position, using the usual building level.
After that, a sewer pipe is brought to the device and, at the level of its connection, a hole is cut along its perimeter, because the inlet pipe is not structurally provided due to the difference in the depth of connection in different areas.
The pipe is welded using the supplied welding rod.
The foundation pit for the Topas septic tank should be quite spacious. To prevent soil from crumbling, wooden formwork is installed on the walls of the pit
Then, the power supply is connected to the cleaning object. The cable is protected with a corrugated pipe and laid in the same trench as the sewer pipe. After that, a pipe segment connecting the septic tank to the after-treatment system selected by the owners is connected to the outlet pipe.
The technical stuffing is installed in a tank immersed in the foundation pit and, if necessary, lined: a pump, if provided, a compressor.
To remove methane, which is formed during the biological treatment of effluents, it is necessary to install at least one ventilation riser. A suitable place for its location is the exit of the sewer pipeline from the house.
Ventilation can be arranged at the outlet of the septic tank, but it is better to use both options in the complex.
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The device around the flower garden septic tank
Station cover on a lawn background
Luke in the front garden among the bushes
Device pad with track
After installing all the functional parts and verifying the correct connection, they begin to backfill the pit. In order to balance the external pressure of the soil on the walls of the septic tank, it is simultaneously filled with water with backfill. Injected water will gradually be displaced as the flow and treatment of effluents.
Recommendations for use
In order for the septic tank to work properly and for a long time, it should be used in accordance with the rules established by the manufacturer. It is necessary to avoid moving inorganic waste of various inorganic waste, for example, plastic, polyethylene, construction waste, etc.
The correct installation of the “Topas” septic tank is extremely important for the further successful operation of this type of autonomous sewage system. Violation of recommendations may cause destruction of device capacity
Such substances are not susceptible to bacterial processing, therefore, at best, they simply settle in a septic tank, reducing its useful volume and productivity. In the worst case, the presence of inorganic contaminants can lead to damage to the septic tank or equipment damage.
A detailed overview of common breakdowns of the septic tank “Topop” and methods for their elimination are discussed in this article.
It is not recommended to pour into the sewer substances that contain antibiotics, as well as chlorine or manganese compounds, since this creates an environment hostile to bacterial cultures, they can simply die.
If the number of bacteria in the septic tank decreases markedly, waste processing will slow down and an unpleasant odor will appear in the septic tank.
For the same reasons, it is not allowed to use a septic tank to dispose of a large amount of alcohol-containing liquids, industrial oils, antifreeze, acid or alkali of high concentration, for example, household cleaners.
Do not let the wool down the drain. Although it is an organic substance, it cannot be processed quickly enough in a septic tank, but it can cause clogging of the device.
Regular removal of neutral sludge accumulated at the bottom of the “Topas” septic tank is an important part of the device’s maintenance, ensuring its uninterrupted operation
Problems can also arise as a result of a power outage. If the septic tank does not work, and the waste continues to flow, this will lead to overfilling of the tank, resulting in uncleaned mass entering the ground.
In case of short power outages, it is recommended to reduce the amount of effluents entering the sewer if possible. In case of long outages, an alternative source of electrical energy should be provided.
Regular maintenance of the septic tank will help you notice problems in time and prevent possible problems. The purity of the resulting water treatment should be checked from time to time.
If the amount of pollution increases, you should find the cause and eliminate it: adjust the septic tank, update the composition of bacterial cultures, etc.
Approximately three or four times a year, the accumulated sludge should be pumped out of the tank using a special hose, as well as a tank that collects non-processed waste. Every two years, the compressor membranes must be replaced with new ones so that these mechanisms work correctly.
But the filters need to be replaced every month, they quickly become dirty. The aerator is rarely replaced - every 12 years, but do not neglect this measure.
If the septic tank is not to be used in the winter, it must be properly preserved.
It should be understood that this is not a heating system, the complete pumping of liquid from the septic tank will have a detrimental effect on the bacteria settled in the device. Before preservation, the device is cleaned and left partially filled with water.
The process of work and installation of the septic tank “Topas” is described in the following material:
The installation procedure for the “Topas” septic tank is shown in detail here:
This video shows the procedure for cleaning and maintaining septic tanks of this type:
Septic tanks “Topas” are reliable and useful devices. They are quite diverse in terms of functional features and price, which allows you to choose the right septic tank option for any site.
It is very important not only to choose the right septic tank for your home or summer house, but also to carry out its competent installation and regular maintenance. In this case, the device will work for a long time.
Do you have a compact septic tank from the Topas family installed in your country house? Tell me, did you install it yourself or did you call a master? How often do you clean it and are you satisfied with the overall system? Leave your comments and add a photo of your septic tank in the block under this article - your review will be useful to many owners of cottages.