Autonomous sewerage is confidently replacing cesspools from summer cottages and private households. One of the best solutions to the problem of waste disposal is the Eco-Grand septic tank. A Russian-made device with HIBLOW (Japan) and Karcher (Germany) components, which, at a relatively reasonable price, is of fairly high quality.
We offer to understand why the installations of the Eco-Grand company have gained popularity among consumers. For the objectivity of the assessment, along with the positive aspects of operation, we also noted the weaknesses of the treatment plant.
From the presented article, you will learn how the unit is arranged and works, what are the features of installing and maintaining a septic tank. In addition, following the practical recommendations, you will be able to choose the right model of the treatment tank, taking into account the upcoming operating conditions.
The content of the article:
- How does the Eco-Grand septic tank work?
- The principle of operation of the device
- Pros and cons of this septic tank
- How to choose the right model?
- Detailed instructions for installing a septic tank
- Features of the operation of "Eco-Grand"
- Conclusions and useful video on the topic
How does the Eco-Grand septic tank work?
Externally, septic tanks of this type have a cubic configuration traditional for such devices. A durable plastic tank is closed with a metal lid, in which holes are made for ventilating the device, supplying electricity, etc.
Inside, the space is divided into four main compartments through which wastewater circulates.
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"Eco-Grand" is a sewerage station that treats wastewater by 95% or more. The processing involves chemical, biological and physical natural processes
The body of the station is divided into 4 chambers and is equipped with airlifts for the flow of sewage during the processing period from compartment to compartment. To supply the oxygen required for the life of aerobes, compressors are installed that force air into two different chambers.
The body of the Eco-Grand sewer station is made of polypropylene reinforced with glass fibers, which causes a symbiosis of lightness and strength
The station of high biological treatment can be installed in soils of any type and category. The installation is not affected by the ground water level
The strength of the body of the sewer station and the flawless operation of the system allows it to be located closer to the foundation than the 4-5 m regulated by the standards
During operation, the Eco-Grand sewer station does not emit unpleasant odors, due to which it can be located near the border of the site
A station that is properly connected to the sewer does not require constant monitoring by the owners. It is enough to conduct a visual inspection once a week
Once every six months, silt is removed from the stabilizer chamber by a regular airlift, the walls and the airlifts themselves are cleaned, the compressor air filter is washed
What is a septic tank "Eco-Grand"
Technical equipment of the station
Lightweight and durable septic tank
Geological conditions for installation
Distance from the foundation of the house
Device near the boundary of the plot
Stable performance and easy maintenance
Cleaning the walls and equipment of the septic tank
The operation of the Eco-Grand septic tank is ensured by two high-quality Hiblow compressors made in Japan, which differ not only in increased reliability, but also in relatively small size compared to domestic analogues.
The deflector and aerator are devices designed to saturate the drains with air received from the surface.
Filters trap and collect debris that cannot be recycled using bacterial cultures. The movement of wastewater between the individual compartments of the septic tank is carried out using airlifts and overflows.
It is worth noting that the body of the device is made of very durable and environmentally friendly homogeneous propylene.
The diagram clearly shows the device of the Eco-Grand septic tank, which is divided into four main compartments. Drains circulate through them, moving with the help of airlifts and overflow
The high quality of septic tanks for summer cottages with the Eco-Grand logo is ensured not only through the use of high-quality materials and advanced technologies.
Before going on sale, the device is tested on special stands, which allows you to immediately diagnose shortcomings and quickly eliminate them.
Eco-Grand septic tanks require a minimum amount of electricity to operate, while they require minimal maintenance, are easy to install and do not freeze in winter
The principle of operation of the device
Eco-Grand septic tanks, like other treatment facilities of this type, operate using the principles of biological treatment. It is carried out by introducing into the sewer capacity of the colony bacterial culturesspecially selected for this purpose.
Eco-Grand septic tanks use varieties of aerobic bacteria. For the functioning of these organisms, constant access to air is necessary, unlike anaerobic cultures, which can live and develop even in conditions of complete tightness. Microorganisms working in septic tanks are sensitive to the contents of drains.
The model range of septic tanks of the Eco-Grand brand provides an opportunity to choose a design for supplying sewer pipes to it at different depths
The number of bacteria can be affected by aggressive technical fluids, mold, chlorine-containing substances, etc. This point should be taken into account even before the start of the septic tank.
The vital activity of aerobic bacteria is also accompanied by the release of a certain amount of heat, which additionally protects the device from hypothermia during the winter cold.
As already mentioned, the device is divided into four main sections. First, the effluents enter the receiving chamber, where they are intensively saturated with air and come into contact with bacterial cultures.
Active aeration is performed using compressors and allows you to immediately solve several problems:
- creates a favorable environment for the successful life of aerobic bacteria, which improves the quality and speed of wastewater processing;
- crushes incoming contaminants, making the contents of the working environment more homogeneous;
- allows you to separate from the total mass of wastewater and bring to the surface part of the non-recyclable inclusions.
Under the influence of bacterial cultures, an active release of sludge begins, which at the initial stage remains in the water in the form of suspended particles. After that, the airlift moves the prepared effluents to the second compartment - the aerotank - to continue their processing. Here, the silty content is formed at a more active rate.
To drain purified water from the Eco-Grand septic tank, a filtration field or well should be created. Water can be used to water the site or fill an ornamental pond
To remove purified water from the "Eco-Grand" installation, it is necessary to create filtration field or filter well. Water can be used to water the site or fill an ornamental pond. At the same time, aeration of the working fluid continues.
With the help of another airlift, the wastewater treated with bacteria enters the third compartment, which is called the sump. As the name implies, the working fluid is here for some time so that the sludge contained in it accumulates below in the form of sediment.
The water remaining after settling undergoes additional filtration and through the overflow enters the fourth compartment, from where it is discharged into the ground or into a separate storage tank.
If for some reason the drainage of water from the sump is not removed by gravity, for these purposes they use drainage pump.
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The liquid component of wastewater separated from the sludge, clarified and disinfected during processing, is easiest to dump into the gutter
A more complex and expensive option is the discharge of treated wastewater into the ground. Before that, it must pass through an infiltrator or similar point of soil post-treatment.
Depending on the budget and the volume of wastewater, either several drainage trenches are arranged, or a filtration field from a complex of perforated pipes with a filter bed
If there is no free space on the site for the construction of a horizontally oriented filter system, absorbing wells are built with a soil filter with a capacity of 1 m instead of the bottom
Collection of clarified water in a ditch
Waste water infiltrators
Filtration field from the drain complex
Tire absorption well
The resulting water can be used for irrigation or to meet the technical needs of the site. Although the degree of wastewater treatment using the Eco-Grand septic tank is quite high, it is still not recommended to use such water for drinking, cooking, washing or taking a shower.
The resulting neutral sludge is disposed of using an airlift in a container provided for this purpose. To do this, periodically use a special hose and the ability to switch the direction of the air flow.
The neutral sludge tank should be cleaned regularly, as well as the treated water collection point, otherwise the drains in the device may reach the overflow level. Neutral silt is an excellent fertilizer, it can simply be applied to the soil on the site, thus improving the state of the landscape.
Pros and cons of this septic tank
When comparing the advantages and disadvantages of the Eco-Grand septic tank, you can see that the former are much more than the latter. Buyers who have installed such an autonomous sewage system and have been using it for some time, note the reliability of the device, its high quality and stable operation.
The Eco-Grand septic tank looks like an elongated plastic cube with a durable metal lid. The main part of the structure is located underground, so the noise from the operation of the septic tank is not heard.
The range of septic tanks "Eco-Grand" is quite wide, they vary in performance, which allows you to satisfy requests owners of small dachas, and the need for large cottages, and even to provide a small village with high-quality sewerage.
All models of septic tanks produced under this brand are delivered almost ready-made, which greatly facilitates the process. arrangement of autonomous sewerage.
The installation of equipment usually takes one working day, in some cases it may take two days. Exceeding the two-day installation period is extremely rare and is usually associated with the occurrence of emergency situations.
Installation work is usually carried out using common construction equipment: an excavator that digs a pit and a truck crane for carefully lowering the container into this pit.
The Eco-Grand device is delivered practically assembled, so it is not difficult to install it. The septic tank is characterized by increased reliability, as it is made of high quality materials.
With a strong desire and the presence of a team of builder friends, the installation of the Eco-Grand septic tank can even be done manually so as not to spend money on renting special equipment. The use of quality materials and equipment, as well as design features make it virtually immune to corrosion.
Such septic tanks are also not afraid of cold, since the body material has reduced heat-conducting properties, and aerobic bacteria actively emit heat energy. All this makes "Eco-Grand" quite resistant even to severe frosts.
The septic tank, located mainly underground, works completely quietly, the process of processing wastewater is not accompanied by any unpleasant odors.
On the surface there is only a neat cover of a laconic design, which is almost invisible. If desired, this element is not at all difficult to decorate.
Maintenance of Eco-Grand septic tanks is also not particularly difficult. The owners of the device will hardly need to invite a team of vacuum cleaners. Moreover, from time to time the company offers the first free service as a gift, but this is subject to the purchase of a treatment plant from them.
The lid of the septic tank protrudes slightly above the soil surface, it looks neat, so it will not spoil the landscape design of the site and will organically fit into it
Of course, the sludge must be removed regularly. This is a useful substance for the soil, which can be safely applied to the soil on the site.
When disposing of this biomass, there will be no problem with unpleasant odors, as happens in the process of pumping out cesspools. Clean water obtained from biological waste treatment is suitable for watering or washing a car.
Resourceful owners of summer cottages successfully use this liquid for fountains, ponds or other similar decorative elements on the site. But it is not recommended to pour recycled water into the pool.
The disadvantages of the "Eco-Grand" are the same as those of other structures of this type. First of all, critics note the dependence of the device on the availability of electrical energy.
But if the power is not available for a short time, this does not negatively affect the condition of the septic tank. In this case, the biological treatment process does not stop, although its speed slows down a bit.
During long outages, it is recommended to control the amount of drains so that the tank does not overflow, or use an alternative power supply.
Airlifts and overflow of the Eco-Grand septic tank are narrow tubes that can easily become clogged due to inorganic contaminants: film, wool, construction debris, etc.
The weak point of Eco-Grand installations is airlifts, which are easily clogged if small particles of non-recyclable waste, such as plastic film, get into the sewer. As a result, airlifts often have to be cleaned.
Preventing this problem is very simple, it is enough to protect all drains with special protective nets and do not forget to control the composition of the contaminants that are drained into the toilet.
Finally, for the sake of the safety of bacterial cultures, household chemicals containing chlorine, as well as aggressive acidic or alkaline components, will have to be abandoned. The death of microorganisms and the problems associated with this phenomenon usually do not become apparent immediately.
As a result, it may be necessary to thoroughly flush the septic tank from incompletely processed wastewater and repopulate it with a colony of bacteria. You can use purchased funds, for example, "Doctor Robik".
How to choose the right model?
Eco-Grand septic tank models differ in performance, which is reflected in the name of the device. For example, "Eco-Grand 5" designed to serve a house in which five people live permanently, "Eco-Grand 8" designed for a cottage with eight tenants, etc.
These two models, as well as the Eco-Grand 10, are considered the most popular in private housing construction.
This table allows you to accurately determine the performance and other characteristics of individual models of the Eco-Grand septic tank, taking into account their modification
Separately, it is worth mentioning the smallest device from the family of these septic tanks - "Eco-Grand 2". It is characterized by low performance and moderate price. Suitable for small cottages that are used only in the summer.
Of course, the name of the model is a very conditional indicator, you should focus on the exact technical characteristics of each device:
- "Eco-Grand 5" - performance 1 cu. m per day, volley discharge no more than 250 l;
- "Eco-Grand 8" - productivity 1.6 cu. m per day, volley discharge no more than 470 l;
- "Eco-Grand 10" - performance 2 cu. m per day, salvo discharge no more than 790 l.
Other models of these septic tanks are more productive, for example, "Eco-Grand 15" can be used to process wastewater from several small houses at the same time. "Eco-Grand 150" - a powerful device that will satisfy the needs of a hotel or a small town.
In addition, there are two special modifications of Eco-Grand septic tanks, designed to improve its performance in particularly difficult conditions:
- Standard - devices with a pipe tie-in at a depth of 0.8 m;
- Long - models in which the sewer pipe is inserted at a depth of 0.8-1.4 m due to the increased level of groundwater;
- Long extended or Superlong - modification with the possibility of low installation of the sewer inlet (from 1.4 m).
The septic tank model should be selected not so much for the number of residents, but for a specific amount of waste. If it is intended to service not only the house, but also the pool or bath located on the site, it is better to give preference to a more powerful septic tank model.
It also makes sense to take a larger sewer device if the number of permanent residents increases in the near future or guests often stay in the house. However, buying an overly large septic tank “just in case” is not worth it. The purchase of a device, its installation and maintenance will cost more, but these costs will not be justified.
Detailed instructions for installing a septic tank
Understanding the step-by-step technology for installing a treatment plant will help you install it yourself or control the actions of workers.
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Step 1: To transport a light sewer station, you do not need to order powerful equipment with a forklift
Step 2: Before installing the structure, a pit is developed, the height of which should be equal to the height of the hull. The bottom of the excavation is filled with sand and rammed
Step 3: In order to move the body of the sewer station to the pit, the efforts of three / four people will be required
Step 4: Holding the middle part and bottom of the body with a taut cable, it is carefully immersed in the pit
Step 5: If deviations are detected during the check of the levelness of the closed roof with the building level, the position of the body is leveled by adding crushed stone or sand under the bottom
Step 6: Trenches are brought to the septic tank installed in the pit for connecting sewer pipes, a route is laid and pipes are inserted
Step 7: Compressors and airlifts are installed in the body of the sewer station immersed in the ground, connected to the power supply
Step 8: After checking the operability of the sewer system and the station, the trenches and the pit are filled with soil dumped during development
Transportation of a septic tank
Development of a pit for the installation of a septic tank
Moving the body to the pit manually
The process of immersing the hull into the pit
Leveling the position if necessary
Connecting sewer pipes to the station
Installation of technical equipment of the septic tank "Eco-Grand"
Arrangement of the site around the neck
Features of the operation of "Eco-Grand"
The manufacturer claims that Eco-Grand septic tanks require minimal maintenance, and this is true.
Device owners are required to perform the following simple steps on a regular basis:
- make sure that contaminants dangerous for the septic tank do not get into the sewer;
- regularly inspect the device for damage;
- control the liquid level in the tank to prevent its overflow;
- dispose of accumulated sludge in a timely manner;
- Right prepare the septic tank for winter.
The list of substances that do not fit well with the biological treatment order is quite wide. In addition to the previously mentioned chlorine-containing substances, as well as acids and alkalis, it is worth paying attention to many technical fluids: gasoline, oils, paints, antifreeze, etc. Pour these substances into such a sewer it is forbidden.
Each cleaning product will have to be checked for compliance with the requirements of the septic tank, and it is recommended to use aggressive household chemicals for cleaning no more than once a week.
To prevent clogging of the device, practically any non-decomposable, non-organic contaminants are excluded from entering the drains: sawdust, small construction debris, rags, film, etc.
A protective mesh installed on every drain in the house will prevent small inorganic debris from entering the septic tank, which will prevent it from clogging.
Pet hair should also be included in this list - bacteria do not have time to process it, which leads to clogging of airlifts. Large volumes of plant waste can also be dangerous, especially if they are poorly ground. Caution should also be exercised when disposing of unnecessary drugs.
If for some reason a small amount of debris or corrosive substances got into the sewer, do not panic. But the operation of the system should be monitored more closely in order to immediately identify the problem and fix it.
In some cases, you should not deal with repairs yourself, it is better to contact specialists. This recommendation is especially relevant if the warranty period has not yet expired.
A visual inspection of the Eco-Grand septic tank should be carried out at least once a month. Check the condition of the sludge tank, namely the level of its filling. In addition, you need to inspect the drain for purified water, it should not be clogged.
The lid of the septic tank should also be lifted, make sure that the structure has no internal damage, and also evaluate the smell of the contents of the septic tank.
Compressor gaskets gradually become dirty, which can cause failure. These elements should be periodically replaced with new ones to prevent damage to the septic tank.
A change in normal odor, especially the appearance of a stench, may indicate that the number of bacteria in the septic tank has dropped to dangerously low levels.
In this case, it is necessary to identify and eliminate the cause of the death of microorganisms, as well as replenish their number to the required level.
In septic tanks, aerobic and anaerobic bacteria are used that process wastewater, decomposing it into purified water and neutral sludge.
To clear the receiver of sludge, the compressors must first be switched off. Then the mass of neutral sludge is pumped out of the storage tank using a drainage pump. You can immediately apply this fertilizer to the soil or compost it in a special pit.
With proper maintenance and operation, the Eco-Grand treatment plant can last about 50 years. Therefore, immediately after the purchase and installation of a septic tank from this manufacturer, we recommend that you familiarize yourself with manufacturer's detailed instructions maintenance of the model, and also, do not forget to correctly perform conservationif a long break in operation is planned in the winter.
Conclusions and useful video on the topic
This video clearly shows the description of the device and the principle of operation of the Eco-Grand septic tank:
Eco-Grand septic tanks are a reliable autonomous sewage system, made to the highest modern standards. Proper operation, regular maintenance and competent installation will provide this device with a long period of trouble-free operation.
Do you have experience using the Eco-Grand septic tank? Or have questions about the topic? Please share your opinion, leave comments and participate in the discussion of the material. The feedback block is located below.
