Septic tank for giving a high level of groundwater. We clean drains, or why we need septic tanks for summer cottages with a high level of groundwater

Options for septic tanks for cottages with a high level of groundwater

To date, it is easy to choose the optimal model of a septic tank, which will allow you to deal with the seemingly unsolvable problem that has arisen at first glance. These can be septic tanks for high groundwater with horizontal and vertical housings with different volumes and performance, as well as made of different materials.

• Septic tank of a bulk field of utilization
  This is a rather simplified technology, which consists in the fact that the infiltrator or filter cassette, with a significant height of groundwater, is installed on the surface of the earth, and not at the level of the septic tank. This will make some adjustments to the landscape design in the form of a formed mound, but it can be decorated with available means, for example, in the form of an alpine hill.
• Storage tanks
  Option for cottages with occasional visits. The material of manufacture is fiberglass, capable of withstanding impressive external loads. The disadvantage of the storage tank is that the collected wastewater should be removed from it independently or using the equipment of a sewage machine.
• Deep biological treatment station
  The easiest way out of the situation, which avoids any difficulties. The absolutely hermetic body of such a septic tank, in particular TOPAS and ASTRA, allows for the deepest clarification of wastewater, which is then discharged into a ditch or onto a relief.

Installation of a septic tank

In choosing any option, you should clearly follow the recommendations for installing a septic tank in a country house with high groundwater.

An important condition is the reliable sealing of the unit body. In the case of choosing the cheapest option, as a filling tank, it will be necessary to create additional structural elements, as a result of which the complexity of sealing increases significantly. And this is fraught with the penetration of effluents into groundwater and contamination of drinking water sources on the territory of a suburban area.

It is mandatory to retreat from the foundation of the house at a certain distance, preferably at least 15 meters, so that the movement of the underground layers does not damage the foundation of the building.

There is a risk of the installation being squeezed out of the ground, which requires additional "anchoring" of the station body. The "anchoring" procedure consists in pouring the bottom of the pit with concrete, thus creating a heavy cushion with a thickness of at least 25 cm. Simultaneously with pouring into the cement mixture, hinges or anchor bolts are mounted, which will then be used to securely fix the station body by means of elastic belts.

The pit itself is dug out in such a way that a gap of up to 30 cm wide remains between its walls and the septic tank itself. Subsequently, a mixture of sand and cement should be poured into it in a ratio of 5: 1, while simultaneously filling the tank with water at the same level, and then carefully compacting the layers . Such prevention will allow not only to keep the station itself, but also the walls of the pit in the original geometry.

Additional problems of high groundwater

• The most serious problem in this situation is that it is not possible to use soil filtration for post-treatment. They are necessary if you decide to abandon the deep biological treatment plant. Otherwise, you will have to use the services of sewers more than once during the season. Or create above-ground filtration fields. This is a dubious way out, because. associated with additional costs in the form of the acquisition of drainage pumps, unpleasant odors and significant changes to the landscape design.
• Due to the high waterlogging of the soil, it is recommended to carefully insulate the inlet and outlet pipelines with synthetic materials.

Important!

• The cheapest option will require impressive physical effort and a lot of time.
• A finished sewer station is seen as a more costly option. However, it provides less hassle, both in installation and during operation.

User Choice 4 The best aerator 5

One of the most important issues when buying a plot, cottage or country house is the availability of communications. And if, as a rule, there are no problems with water or electricity, then central sewerage in the private sector, especially far from the city, is a rarity. And the fastest and most practical solution to this problem is to buy a septic tank.

The two most common types of individual treatment facilities are a non-volatile (autonomous) septic tank and a volatile station. Both types of waste disposal devices use several stages of treatment: mechanical sedimentation of suspended matter, filtration and biological treatment. Self-contained septic tanks use anaerobic bacteria to process waste, which do not need oxygen, but act slowly. In energy-dependent devices, biological filtration occurs with the help of more active aerobic microorganisms that require the use of aerators. But the level of purification in such septic tanks reaches 98%.

The choice of the optimal model of the cleaning device depends on several factors:

1. Required performance. For one person, the volume of wastewater is usually laid equal to 150 - 200 liters per day.
2. Availability of electricity on site.
3. Plot size. Autonomous septic tanks require a larger area, as they are equipped with additional ground filtration fields.
4. Ground water level. High GWL may require the use of additional engineering solutions.
5. Soil composition. For areas with hard rocks, it is better to use horizontal septic tanks, since they require a shallower pit.

Our review contains models of septic tanks with the best technical and operational characteristics. When compiling the rating, the following were taken into account:

• recommendations of civil engineers;
• feedback from users who have installed specific models of cleaning devices in their area;
• value for money septic tanks.

Useful video - how to choose the right septic tank

The best budget septic tanks for summer cottages

Septic tanks for installation in a summer cottage are small and relatively cheap. As a rule, these are simple stand-alone models that act as a sump and are connected to an additional filtration system. They have an extremely simple one-piece design, a low level of productivity, and are also unpretentious in maintenance.

4 TANK-1

Excellent price/performance ratio
Country Russia
Average price: 19,500 rubles.
Rating (2019): 4.6

Tank-1 is the youngest model in the line of non-volatile septic tanks Triton Plastic. Its design is simplified to the limit: there are only two chambers: coarse primary treatment and secondary biological treatment. But, nevertheless, this small septic tank, capable of treating up to 600 liters of wastewater per day, has all the advantages inherent in the more expensive models of the company: it has a horizontal layout and a durable one-piece cast body with special stiffeners, which increases the service life and eliminates the penetration of soil water into the interior of the building.

This compact model is ideal for installation in the country and is designed for use by two or three people. The level of wastewater treatment for this septic tank is 75 - 80%, therefore, it is recommended to use a special infiltrator in which additional treatment takes place with it. Buyers note the compact dimensions of the septic tank, easy installation and trouble-free operation. However, you still have to clean the chambers from sediment once every few years.

3 Termite Profi 1.2

The strongest container
Country Russia
Average price: 23,500 rubles.
Rating (2019): 4.6

This miniature vertical septic tank can serve no more than two people. The degree of wastewater treatment reaches 85%. Due to its small weight - only 80 kg, Termit Profi 1.2 is easily transported and mounted. This is a great option for a small country house or a free-standing bath. An additional advantage is that the wall thickness of the Termit Profi 1.2 tank reaches 20 mm, and the shape of the body is specially designed for optimal operation under load.

According to user reviews, this septic tank is easy to install and maintain. Experienced summer residents recommend that it is imperative to sprinkle the container with sand cement to increase the service life of the structure. Among the disadvantages is the impossibility of using this septic tank with a high level of groundwater on the site.

2 MICROB 450

Best price
Country Russia
Average price: 12,400 rubles.
Rating (2019): 4.8

For a dacha that is visited by 1-2 people, a guest house or a change house for the period of building a house, the best option would be a budget septic tank Microb 450. Its capacity is 150 liters per day, and its weight is only 35 kg. Of course, to install it, you will need to make a sand cushion, and apply a layer of insulation on top, since its wall thickness is small. But this septic tank can be installed in areas with any level of groundwater - of course, with the implementation of the manufacturer's design recommendations.

Customers especially like the device's reasonable price and easy installation. Of course, for a country house you will need a septic tank with a larger capacity, but for periodic trips to the country and with a limited budget, Microb 450 is ideal.

As mentioned above, septic tanks are divided into autonomous and volatile. What is their peculiarity, what are the strengths and weaknesses - we learn from the detailed comparison table:

Type of septic tank	pros	Minuses
Autonomous	Low, compared to a volatile septic tank, cost Generally higher reliability Does not depend on power supply Does not create additional energy costs	– The need for underground filtration of wastewater – In some cases, it does not isolate the surrounding space from a fetid odor – Gradual accumulation of sludge requires periodic pumping – The need to equip access roads for a sewage truck
volatile	No sediment buildup The ability to take the septic tank to a third-party place, there is no need to equip an access road Complete isolation from unpleasant odors Installation of filtration fields is not required (for soil treatment of runoff)	– Compared to stand-alone models, higher price – Dependence on electricity and, as a result, significant additional costs – The presence of a larger number of constituent elements reduces the theoretical reliability

1 Rostok Mini

Stable performance in all conditions
Country Russia
Average price: 24,120 rubles.
Rating (2019): 4.9

Inexpensive autonomous septic tank for a small country house. According to user reviews, due to the small volume (1000 liters) and the lightness of the design (total weight is 65 kilograms), installation does not cause much difficulty. The filtration capacity is 200 liters per day - this is not much, but the septic tank is designed for one or two users. The Rostok Mini copes well with the assigned functions, it requires pumping out once or twice a year (provided that all the supplies and the system are in good order). A very good option for equipping a summer house or a house, which will not hit the pockets of potential consumers hard.

Advantages:

• seamless durable and lightweight (65 kilograms) plastic case;
• the presence of additional stiffeners to give structural strength;
• completely blocks unpleasant odors;
• low, but stable performance;
• does not require frequent maintenance;
• attractive price.

Disadvantages:

• for its price category - no.

The best volatile septic tanks

Treatment stations, whose biological filters are populated with aerobic microorganisms, are the most technically advanced version of septic tanks. They produce 98% purified water at the outlet - it can be used for irrigation, other technical needs, or discharged directly into the ground. Cleaning the tanks from silt is needed every couple of years, and the organic sediment itself is an excellent fertilizer for plants on the site. Since the drains do not need additional ground filtration, the structure takes up a minimum of space.

The main disadvantage of such systems is the need for electricity. As part of the aerobic system, there is always an aerator-compressor that saturates the liquid with oxygen necessary for the vital activity of bacteria. It is this fact that explains the higher cost of volatile stations - both during purchase and installation, and during operation.

5 ERGOBOX 4

Optimal price-quality ratio
Country Russia
Average price: 60,900 rubles.
Rating (2019): 4.7

The body of this treatment plant is manufactured using rotational molding technology, which guarantees the absence of seams and uniform thickness of the material. As part of the septic tank, Japanese compressors and German pumps are used in order to ensure the smooth operation of the entire system. In case of loss of power supply, the station can operate normally for two days, after which it switches to the mode of an autonomous septic tank with an anaerobic filter.

Users note, first of all, the excellent value for money of this model. With a capacity of 800 liters, it consumes only 1.5 kW per day and provides a volume of water disposal sufficient for the permanent residence of 4 people. You can choose either a gravity-fed installation or a forced discharge option for areas with a high groundwater level.

4 Tver-0.5P

The best aerator
Country Russia
Average price: 75,000 rubles.
Rating (2019): 4.7

The service life of this septic tank declared by the manufacturer is 50 years. This becomes possible due to the fact that a special structural plastic is used for casting the case, and the compressor equipment is made in Japan. The degree of water purification in this line of treatment facilities reaches 98%, which eliminates the need for additional soil filters.

The maximum productivity of the equipment is 500 liters per day, so Tver-0.5P can be recommended for a dacha or a country house with permanent residence of 2 - 3 people. Customer reviews are almost the same: the device does its job perfectly, there are no smells and noise, and periodic maintenance is required only once a year. The only drawback is the high price with relatively low performance.

3 Unilos Astra 5

User Choice
Country Russia
Average price: 76,000 rubles.
Rating (2019): 4.8

One of the most famous septic tank models on the domestic market, which does not have a single visible weak point. If you do not take into account the price level, then the fifth Astra fully meets the requirements of a premium class product (if this is acceptable in this case). The system is based on a very fine filtering effect on the incoming wastewater - thanks to aerobic and anaerobic filters, it is possible to achieve almost 100% of the purification rate. Thus, up to one cubic meter of wastewater is processed per day, which is a normal average value. The input of the drain pipe can be organized at heights from 0.6 to 1.2 meters relative to the ground level, which greatly simplifies the installation of the tank.

Advantages:

• high degree of aerobic and anaerobic purification (98%);
• reliable container body;
• good throughput (filtration up to one cubic meter of wastewater per day).

2 Eco-Grand 15 (Poplar)

Best processing ability
Country Russia
Average price: 148,230 rubles.
Rating (2019): 4.8

An overall volatile septic tank, ideal for equipping large country houses. Except that the tank weighs 380 kilograms, there are no problems with installation. And in terms of performance, everything is very good: the entire volume of the septic tank is divided into four compartments, two of which are equipped with aerators. After the effluents enter the receiving chamber (volley ejection can reach 450 liters), due to aeration, the solid fractions begin to decompose.

In a separate compartment under the controls there is a compressor for pumping wastewater through the system. By the way, the latter consumes a total of up to 2.8 kilowatts of energy per day - a little, but a decent amount accumulates over a long time of operation.

Advantages:

• active filtration and aeration of incoming wastewater;
• good performance (1.8-2.0 cubic meters of wastewater per day);
• capacity equal to six cubic meters.

Disadvantages:

• high price;
• increased power consumption.

1 TOPAS 8

The most economical model
Country Russia
Average price: 99,875 rubles.
Rating (2019): 4.9

One of the most economical energy-dependent septic tanks available to a wide range of consumers. Putting such a tank in the country is not entirely justified - it is much better suited to a small country house. The convenience of manual installation (as in stand-alone models) is no longer provided here - the entire structure weighs nearly 350 kilograms. Thanks to the installed filters, it does not require cleaning, it well limits unpleasant odors, and also filters up to 1.5 cubic meters of wastewater per day. According to users, the cost of power supply is tangible, but much less than that of competitors and older models of this series - the septic tank consumes only 1.5 kilowatts per day.

Advantages:

• popularity among users;
• low power consumption;
• high efficiency filtration;
• reliable case;
• ease of operation and low maintenance requirements.

Disadvantages:

• not detected.

The best autonomous septic tanks

Autonomous septic tanks that do not require an electrical connection are the best option for a summer cottage or a country house in a remote area where there are problems with electricity. Their design does not contain moving mechanical parts, so they are simple, reliable and will perform their functions in any case.

Of course, there are also disadvantages - lower productivity, worse level of effluent clarification. The best models provide no more than 85% purification, and, therefore, the water needs additional filtration. There are several ways - drainage fields, infiltrators, filtration wells - and all of them mean additional cash costs and reduce the useful area of ​​\u200b\u200bthe site. However, for houses with periodic residence, such structures may be more preferable, since they do not consume electricity and can be easily mothballed if necessary.

3 Uponor Sako

Good quality plastic
The country: Sweden/Finland (made in Russia)
Average price: RUB 67,575
Rating (2019): 4.7

The Scandinavian concern for the production of serious household equipment has quite successfully entered the Russian market. The domestic branch has launched the production of autonomous Uponor Sako septic tanks, suitable for installation both in a private house and in a summer cottage. In general, the system is not bad: it reliably retains unpleasant odors, filters wastewater without problems (but not perfect), and also does not impose high maintenance requirements. The problem area, judging by the feedback from users, is the extreme intolerance to the removal of rain and drainage water to the local treatment system. Why this is so is a matter of intense debate. But the fact that this is an obvious minus is supported by all and unanimously.

Advantages:

• good standard filtration efficiency;
• quality body materials.

Disadvantages:

• rainwater or drainage water entering the treatment system leads to a deterioration in filtering capacity.

2 Termite Profi 3.0

Maximum degree of cleaning in the class
Country Russia
Average price: 49,100 rubles.
Rating (2019): 4.7

The performance of this model, which uses the principle of anaerobic clarification of wastewater, is 1200 liters per day. At the same time, the level of purification reaches 85%, which allows minimizing the area of ​​the final soil filtration. Such a septic tank with a sufficient supply provides permanent residence for six people. The tank is flushed only once a year, while the structure is completely autonomous.

According to user reviews, the septic tank fully complies with the characteristics declared by the manufacturers, is reliable and practical. It is especially convenient to use it for seasonal living: mothballing it for the winter and then putting it back into operation is not a problem. The disadvantages include a rather complicated installation procedure.

1 Triton-ED-3500 Horizontal

Profitable price
Country Russia
Average price: 43,500 rubles.
Rating (2019): 4.8

This is a relatively inexpensive option for a cleaning system for a summer residence or a country house, where there are significant problems with the power supply. Productivity of model - 700 liters a day that provides requirements of 4 - 6 people. At the same time, the septic tank does not require an electrical connection, and the sludge can be pumped out once a year. Of course, in order for the water discharged into the ground to be sufficiently purified, it will be necessary to additionally apply a drainage field or infiltrator.

Buyers especially like the horizontal layout of the septic tank, which allows you to limit the depth of the pit, as well as its independence from the mains. The disadvantages of the device are that it must be placed away from living quarters, since it is not possible to completely get rid of odors. This treatment plant is especially well suited for a country house in which a family of 2-3 people lives, but guests periodically come.

The choice of a septic tank is a crucial moment that must be approached, taking into account the indicators of groundwater and the frequency of its use. The wrong approach can lead to difficulties in installing the structure, flooding or floating of the septic tank, and violation of its tightness. To avoid this, it is necessary to take into account all the nuances and successfully select septic tanks for summer cottages with a high level of groundwater (GWL).

The first method is suitable for summer residents who have a well. The level is easy to calculate by measuring the distance from the surface of the earth to the water in the well.

Thus, knowing the theory and methods, it is not so difficult to determine the GWL for installing septic tanks for summer cottages with a high level of groundwater.

Factory-made septic tanks for summer cottages with a high level of groundwater

For those who do not want to “bother” and make a septic tank with their own hands, factory-made designs that have several types are perfect. Each of them has both its disadvantages and advantages.

Related article:

What models are on the market? Which manufacturer to choose, so as not to overpay in the end? How to do the installation yourself? This and much more in the detailed material.

Ground type construction

This option has a lot of advantages. Firstly, its installation does not require a pit, which must be further strengthened and insulated.

Secondly, it has only one capacity, which can save a lot of money.

It is not without its drawbacks, of course. Such a design is not aesthetically pleasing, and in addition, it takes up quite a lot of space on the site.

In addition, if the bathroom is often used, then it is often necessary to order a sewage truck, which means paying for it and having a septic tank in the conditions of the need for an entrance to it.

Thus, a ground-based septic tank can significantly save money and effort, and is perfect for those who visit the country house only periodically.

Useful advice! Get a similar design if you do not often visit the country. So you save money, both on installation and on the services of vacuum trucks.

Underground plastic septic tank

The main advantage of factory-made structures is their complete tightness, which in any case will not allow toxic waste to seep into the groundwater that feeds the well or source.

The downside, for the most part, is the price of the device itself and its installation. In addition, installation is not only expensive, but also quite complex in terms of the type of work. In order to prevent groundwater from pushing it out during the operation of the device, the pit is additionally strengthened, a concrete cushion is laid on its bottom, to which all three containers cling to with special belts or other fasteners.

Important information! Such septic tanks, designed for summer cottages with a high level of groundwater, should be installed if you permanently live in the country and want to be sure of the tightness of the structure.

Do-it-yourself construction of septic tanks for a private house

If you want to save a lot of money, and you have the desire and time to carefully study the drawings, instructions and videos, then you can complete the design yourself.

Important information! Do-it-yourself brick buildings and septic tanks made of concrete rings, the schemes of which can be found in large numbers on the Internet, are not recommended. Such solutions do not have the tightness that such devices should have, which means that you will not be insured against draining waste into groundwater.

Option one: installing eurocubes

To implement the first solution, you will only need to purchase special eurocubes - sealed tanks, which then will need to be fastened with pipes and placed in a pre-dug and reinforced pit.

This option is easy to install, and very low material costs. You will need to perform just a few simple steps with ready-made containers. In addition, already quite inexpensive Eurocubes can be bought from former owners, which will reduce the final cost by several times.

Related article:

Is such a design possible and how difficult is it to self-install? We will answer these and other questions in a separate publication.

Option two: do-it-yourself septic tank made of concrete rings, diagrams and photos

It consists of the following sequential steps:

• First of all, a pit of the required size is pulled out, which is strengthened and insulated.

• Concrete rings are being installed to the required depth.

• The joints of the rings are sealed inside and out.
• A sand and gravel cushion is arranged at the bottom.
• Holes are made from which the purified liquid will come out.

Useful advice! The concrete with which you will seal the joints must be supplemented with a special waterproofing mixture.

You can see more detailed instructions in the video below:

Thus, doing septic tanks for a private house with your own hands, with proper preparation, is an extremely feasible task.

Drawing conclusions

A well-executed design is the key to a comfortable stay in the country, the purity of groundwater. In order to properly install septic tanks for summer cottages with a high level of groundwater, you will need a little patience and maximum attention to the proposed materials. By following our instructions and detailed recommendations, you can be sure that you will do everything right. And an additional video will add even more self-confidence.

Septic tank on groundwater (video)

You may also be interested in:

Septic tanks for summer cottages: which one is better to choose and where to install it?

The lack of a central can cause a lot of inconvenience. Many arrange cesspools in the country. At high GWL, they are constantly filled with water, which significantly reduces their efficiency. They can cope with such a problem for giving with a high level of groundwater. We offer you to get acquainted with the existing varieties of such structures and popular manufacturers.

Read in the article

Creation of an autonomous sewerage system for a summer residence with a high level of groundwater

If the groundwater level is high, for a summer residence it should be carried out taking into account the characteristics of a particular area. The complexity of the work performed on private territory is dictated by:

1. The laboriousness of earthworks performed manually. It is quite difficult to dig a pit and backfill while in the water.
2. The complexity of soil post-treatment due to poor absorption of soil saturated with water. As a result, it is necessary to abandon the device of filtration fields or a filtration well. To achieve the desired result, a special platform is set up for the filter elements. Drainage is used to pump the contents of septic tanks into cassettes. To avoid damage to shallow cassettes in winter, they are often masked under, covering them with earth.
3. The undesirability of a prefabricated septic tank. The high level of groundwater contributes to the infiltration of moisture into the well.
4. The need to take measures to prevent the "floating" of the plastic tank.

Attention! Preventive measures taken at the design stage will ensure the stability of the septic tank at a high level of groundwater.

Determining the level of groundwater

To determine the GWL, you should seek the help of specialists. However, this opportunity is rarely used due to the high cost of hydrogeological studies. You can determine the required value yourself in one of the following ways:

• using a two-meter rod with an applied scale and a garden drill. A well is drilled for the length of the drill and left for a day. During this time, water should accumulate in it. A dry rod is lowered into the well and the wet part is measured. The depth of the water will be 2 m minus the value obtained. To obtain an objective result, measurements are taken several days in a row. The stability of the values ​​indicates the correctness of the obtained data. It is advisable to take measurements several times a year. The greatest value will be during the autumn rains and early spring;
• by plants. With a high GWL, alder, willow, and reeds grow well on the site. The active growth of sorrel and currant without additional watering testifies to the proximity of water. In places where water approaches the surface, birch, maple and willow tend to lean towards the ground. Reference tables will help determine the approximate value;
• through wells and reservoirs. Focusing on the water level in nearby reservoirs, you can approximately estimate the water level in the area. If there is a swamp nearby, one can definitely talk about a high level of groundwater;
• grandfather's way allowing you to know whether water is close or far from the surface, but without specific numbers. To do this, turf is removed from a small plot of land. A little fat-free wool and a freshly laid egg are placed in the prepared area. From above, everything is covered with a clay pot and left overnight. If the water level is high, the wool will get wet, and droplets of moisture will appear on the egg. With a low setting, the wool will be moistened, but the egg will remain dry.

A comment

Locksmith for the operation of water supply and sanitation systems of OOO GK Spetsstroy

Ask a Question

"Interrogate your neighbors to find out the water level."

There are folk signs that allow you to determine how high the level of groundwater is. So, with thick evening fog and abundant morning dew, the absence of ants, we can talk about the proximity of water.

Septic tanks for summer cottages with a high level of groundwater: purpose and principle of operation

The main purpose of such equipment is wastewater treatment. Depending on the design, they provide a different degree of water filtration. With a high level of groundwater, the septic tank should be as thoughtful as possible, because the movement of water and high humidity can even wash away concrete soil. In this case, polypropylene containers are suitable, but they must be strengthened by the base - they are light enough and can move under water pressure. Such containers consist of several chambers designed to collect wastewater and remove purified moisture. The system works like this:

• the first chamber is used to collect wastewater and their rough treatment with division into fractions;
• in the second, anaerobic decomposition of organic matter is carried out, accompanied by the breakdown of alcohol and fat;
• the last chamber can be used to precipitate the decomposition products or to pass them into a gaseous state. This stage allows you to neutralize 2/3 of harmful substances;
• soil post-treatment of wastewater is being carried out.

Varieties of septic tanks with high GWL

For giving, you can purchase various models of septic tanks or make them yourself. We offer you to get acquainted with the main types of septic tank with a high GWL and their features. This will allow you to more consciously approach the choice of the appropriate option.

Storage septic tanks at a high level of groundwater - an analogue of a cesspool

Accumulative models - the best solution for giving. They can be made from various materials: plastic, iron. Concrete septic tanks become a good alternative to a cesspool with a high level of groundwater. Due to their simple design, they are able to process small volumes of wastewater. Cleaning is carried out by a sewage machine.

When choosing equipment, it is worth giving preference to the model with the greatest wall thickness. Such equipment is able to withstand the enormous load created by groundwater. To place a storage septic tank, you should choose a place to which a sewage truck can drive up. The disadvantages of storage tanks include high operating costs and the appearance of an unpleasant odor. Especially when pumping.

Budget septic tanks for summer cottages without pumping

Sealed containers, consisting of 2-3 chambers. In the first chamber, the bottom is always sealed. It is always made more than others. In the latter, holes are allowed that allow the outflow of water. Near this camera is mounted. Budget septic tanks do not exude an unpleasant odor.

After a certain period of operation, it may be necessary to clean the first chamber from the accumulated residue. The frequency of cleaning depends on the size of the structure. As a rule, the drainage pump is used every 5 years.

Attention! The accumulated sludge can become a good fertilizer for plants grown in the country.

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.

Biological treatment stations

Factory made equipment. Thanks to a special design, conditions are created inside the container that are favorable for the life of bacteria. The received waste is processed and sent to the collection tank.

The compressors included in the biological station provide the supply of oxygen necessary for the vital activity of microorganisms. An integrated pump is used to transfer fluid from one chamber to another. This allows for a high degree of wastewater treatment: the purified liquid can be used for technical purposes.

Requires electricity to operate. Modern models are characterized by low power consumption. The disadvantages include the high cost.

Features of materials for the manufacture of cameras

Various materials can be used to make septic tanks. Each of them has its own characteristics of the device at a high level of groundwater. We offer you to get acquainted with how to make a septic tank if groundwater is close, using the most popular options for summer residents as an example.

Concrete septic tank with high groundwater level

Monolithic concrete structures are relevant for summer cottages. The construction of a concrete septic tank at a high level of groundwater begins with concreting the bottom, which must be reinforced. It is possible to slow down the corrosion of metal elements due to constant exposure to moisture, the thickness of which exceeds 3 cm.

Having prepared the bottom, set to fill the walls. They must be reinforced with. Provide partitions between the walls. At the last stage, it is filled.

The finished concrete structure should be thoroughly dried. This may take more than two weeks. To ensure the uniformity of the process, the concrete septic tank is covered with a film.

Plastic

When choosing, you can give preference to ready-made containers or European cups. Such material cannot be called the most reliable, however, a plastic septic tank is light in weight and quite tight. You can install it yourself. The disadvantages include the need to equip protection against ascent and a high risk of cracking during heaving of the soil.

fiberglass

Material with high strength characteristics and low weight. Able to withstand heavy loads. Retains its properties under the influence of chemicals. Due to the light weight, a fiberglass septic tank must be anchored.

Fixation of the septic tank from the ascent and protection against heaving of the soil

The light weight of plastic containers makes it necessary to fix them at the construction stage. The anchoring technology includes the following steps:

• leveling the bottom of the pit;
• sandy device 30 cm thick;
• laying concrete slab. Its dimensions must correspond to the geometric parameters of the container. If there is no finished slab, the base can be poured on its own;
• the septic tank is installed on the stove and fixed with special cables and belts.

To protect the container from heaving of the soil, it is worth preparing the mixture by mixing sand and cement in a ratio of 5 to 1. The mixture is poured in layers into the gap between the body and the walls of the pit and watered. When starting backfilling, the septic tank should be filled with water to a level corresponding to the filling level of the pit. Otherwise, due to uneven loading, cracks may appear in the plastic structure.

Installation of an above-ground filtration field

If the groundwater level is high, an additional waterproof well, pump and filter cassette must be installed. The dimensions of the cassette are selected depending on the volume of pumped wastewater. To clean half of the cube, you will need a 1 × 1 m cassette. Water from the septic tank is poured into a special well, and then, using a pump, it is fed to the filter cassette.

For the device of the filter cassette, you should:

• remove 0.3–0.4 m of soil;
• install concrete bars around the entire perimeter of the prepared area. Choose a location at ground level (should not be above ground level);
• fill the site with crushed stone 20–40 mm in size;
• install a tank on top that does not have a bottom, bringing a pipe from the septic tank under it;
• insulate the structure by pouring a layer of soil, the thickness of which should exceed 0.3 m.

Rating of manufacturers of septic tanks for high groundwater levels

Before you buy a septic tank for high groundwater, you should familiarize yourself with the trademarks under which products are manufactured that have proven themselves in the domestic market. The first places in the ratings are given to:

Place in the ranking	Manufacturer	Advantages	disadvantages
Non-volatile septic tanks
1	"Tank"	High quality workmanship. Reliable design, provided with sufficient wall thickness and stiffeners. Block system that allows you to increase . Energy independence.	Small assortment. Lack of anchoring, which imposes requirements for the implementation of installation work.
2	"Triton"	A large assortment. Long service life. Affordable cost.	The duration of groundwater sedimentation. The need to add bacteria to ensure high-quality cleaning.
3	"Leopard"	Retains its properties under the influence of household chemicals. Prevents the spread of unpleasant odors. Designed for large stocks.	Needs additional insulation in winter. Makes high demands on the performance of installation work.
Volatile septic tanks
1		Wide model range. Increased strength. High degree of wastewater treatment. Silent operation. Ease of maintenance.	Sensitivity to household chemicals. Consumption - at least 1.3 kWh. High price.
2	Unilos	High degree of purification. High strength due to 20 mm thick walls. Possibility of occasional use. Maintaining performance in the winter.	High price. Small assortment.
3	Eurobion	Long service life (up to 60 years). Remote control.	work inertia. Consumption − 0.45 kWh.

What is the best septic tank with a high level of groundwater

A large assortment makes you decide which septic tank is best for high groundwater. In such a situation, it is worth getting the opinion of real users.

Rating of septic tanks for high groundwater levels

Model	Peculiarities	Rating
The best non-volatile models
	Durable 65 kg plastic body without seams. Robust construction due to additional stiffening ribs. No unpleasant odors during operation. No need for frequent maintenance. Availability. Productivity − 200 l/day.	4,9/5
	The metal case protected by enamel and a special covering with anticorrosive properties. Productivity − 250 l/day. High quality filtration.	4,8/5
	Plastic housing with internal anti-corrosion coating. Capacious volume (1400 l). Affordable cost. Poorly retains odors during operation.	4,7/5
The best volatile models
	Efficient filtration. Low power consumption. Rugged housing. Ease of maintenance.	4,9/5
	Well filters and aerates drains. High productivity (1.8 m³/day). Tank volume − 6 m³. High price. Great power consumption.	4,8/5

Basic rules for installing a septic tank on the site

The installation of a septic tank in a site with high groundwater is carried out on a stable base. It must be securely fixed to prevent displacement during operation and deformation of the case. Most often, a sand-gravel cushion with a thickness of at least 0.3 m is used as a base. A gap of at least 30 cm is left between the walls of the trench and the tank to level out the effect of heaving soil.

If the septic tank is located at a depth of less than 1 m, a concrete monolith is provided or a reinforced concrete slab is laid. To prevent cracking, the base and. Autonomous sewage pipes are laid on a sand and gravel cushion to prevent damage when the soil swells.

The septic tank is attached to the base with anchor straps. The gap between the tank and the walls of the pit is filled with a mixture containing sand, cement and crushed stone. Provide pipes for sewer ventilation. The pipe must be 0.6 m above the ground. The structure is properly covered with earth.

Article

The topic of today's publication is the use of a septic tank for summer cottages with a high level of groundwater. The successful implementation of such a project will help solve the problem of waste disposal at minimal cost.

Read in the article:

Creation of an autonomous sewerage system for a summer residence with a high level of groundwater

Even if you decide to entrust all the work to professionals, your own knowledge on this topic will come in handy. They will help to buy a septic tank for high groundwater without overpayments, to control the actions of the performers during installation operations. It is necessary to clarify the rules of operation in advance so as not to create unnecessary difficulties in the future. Extending the service life is very important, since a large amount of excavation, surface leveling, and landscape design are expected. Repeating such actions is associated with significant costs.

You have to choose a reliable design that is able to provide tightness for a long service life. During operation, the liquid washes out the soil, pushes the container up. Such impacts can damage the connection with the transport system. In winter, it is necessary to prevent freezing of the installation, to consider protection against heaving forces. Here are the main tasks that will have to be solved in practice. Based on this information, we will evaluate specialized equipment in general and its individual components, cleaning technologies, factory products and homemade products.

Determining the level of groundwater

Similar surveys are done in the course of creating an autonomous water supply.

A geological study is preceded by the construction of a house to clarify the depth of installation of the foundation, the calculation of the drainage system. If there is no such information, a check can be done using a conventional garden drill. They also dig pits, but this method is accompanied by significant physical exertion.

Surveys are planned for the period of spring floods, when the highest possible level of groundwater (GWL) is expected. The drilling scheme is determined in advance, taking into account the proposed installation site for the main structural elements of the septic tank itself and sewerage routes.

The purpose and principle of operation of septic tanks for cottages with a high level of groundwater

Such facilities are installed if it is impossible or too expensive to connect to the main municipal sewer. Cesspools are characterized by low productivity. These outdated cleaning products are still used in summer cottages. But for year-round operation, septic tanks are much more convenient.

The principle of operation of septic tanks for summer cottages

The figure shows the main components of a modern set of equipment. Household drains through a free-flow pipeline flow by gravity into the first part of the tank. Here solid particles sink to the bottom. Immediately, the processes of biological decomposition begin. Partially treated wastewater enters the second section, where a “biofilter” with aerobic bacteria is installed to speed up the workflow. To increase efficiency, such installations are supplemented with forced air supply devices. From here, the liquid enters the infiltrator. This unit distributes waste over a large area.

For your information! With the use of such a scheme, it is possible to obtain a purification level of up to 97–98%. It is quite safe for the environment. To obtain such a result, you need to make the correct calculation and not violate the rules for operating a septic tank for a summer residence with a high level of groundwater.

Special anaerobic bacteria are also used. They are cultivated using special techniques in an environment without oxygen. Useful decomposition processes with the use of such means occur inside the effluents. The obvious advantage is the simplification of the design by eliminating the aerator, there is a reduction in energy costs. But to maintain the activity of such fillers, it is recommended to add a new portion of activators at least twice a month.

Expert opinion

Ask a specialist

“In any of the options, it is necessary to create favorable conditions for the vital activity of beneficial microorganisms. Chlorine and other harmful compounds, antibiotics should be excluded from entering the sewer. Don't forget about vents and pipes. They are needed to remove gases that are released during the fermentation process.”

Basic rules for installing a septic tank on the site

Please note that the permitted distances to any part of the treatment plant are marked in the figure. To clarify the data, it is necessary to study the current legislation:

Regulations	Document	Scope, features
Building codes and regulations (SNiP)	2.04.03-85	Construction of local treatment systems, transport highways for the movement of wastewater.
SNiP	2.04.01-85 (2.04.4-85)	Location of sources and components of the water supply system relative to treatment facilities.
Sanitary rules and norms (SanPiN)	2.1.5.980-00	Restrictions on nature protection zones near open water bodies.
SanPiN	2.2.1/2.1.1.1200-03	The boundaries of free space near septic tanks and other objects that can harm the environment.

The list of restrictions is too long for detailed consideration within the framework of one publication. But it should be noted that the approved rules provide for many important factors:

• filtration and throughput capacity of different types of soils;
• the effect of runoff on different types of plants;
• direction of groundwater flow.

The minimum distance from the septic tank to various types of buildings is set as follows:

• residential building - 3 m;
• workshops, garages, other outbuildings - 1m;
• buildings intended for keeping poultry, small livestock - 4 m.

The distance to the border of the neighboring area must be at least 2 m. It is imperative to take into account the distance of the marked objects in the adjacent territories.

Volume calculation and formulation of technical requirements

If you are guided by the provisions of SNiP 2.04.03-85, single-chamber septic tanks for summer cottages with a high water level are suitable for a runoff volume of no more than 1 m³ per day. In such a structure, new ones are constantly added to the accumulated pollution. Poorly soluble fat waste blocks the cleansing functions. Quite often you have to use the services of sewers.

A two-chamber structure is used with a volume of effluents - 1-10 m³ / day

In some systems, the bottom of the second container is removed. Pebbles and other granular materials are poured there to create an additional filtration layer. But such a solution is not suitable for giving with a high level of groundwater. In the project under consideration, all septic tanks are made airtight.

With a larger amount of wastewater (> 10 m³ / day), three-chamber treatment systems are used. The capacity of the containers can be distributed in the proportion of 50%−30%−20%. But these numbers are not mandatory. The use of certain technologies is essential.

You also need to correctly calculate the required total volume. For accurate calculations, you can find a thematic calculator. The engineering formula takes into account several parameters:

• time of storage/treatment of effluents;
• typical standard for one person;
• the content of suspended impurities in the outlet pipe;
• the temperature of the incoming liquid.

Related article:

After reviewing the information provided, you can get a more complete picture of the home sewage system and the wastewater treatment system and already consciously begin to choose the design of the treatment plant.

The correct solution of everyday problems is quite acceptable using a simplified calculation. A suitable septic tank for a dacha with a high groundwater level should contain enough waste so that there is enough time for it to be effectively processed. Difficulties arise here, which are explained by the different positions of the regulatory authorities. According to building codes, the capacity of such a facility should be at least 3-day volume of sewage. The sanitary standards indicate the minimum level of pollution that is allowed to be sent for final cleaning in a natural way into the ground.

With average pollution levels, a proportion of 1.7-2.2 m³ per user can be used. Thus, 5.5 m³ is enough for a family of three. It is better to make a margin of 10-15% to avoid insufficient treatment with an increase in the volume of effluents.

For your information! For an accurate assessment, it is necessary to take into account the volley discharge. This indicator indicates the possibility of maintaining functions during the rapid passage of the maximum number of drains.

If we are talking about storage capacity, then you will have to increase the size. The average amount of wastewater per person is 200 liters. The capacity of tanks of standard sewage equipment is from 4 to 5.5 m³. If you save too much on the initial investment, you will have to use the corresponding services more often.

When installing a compact septic tank for a dacha with a high level of groundwater with a volume of 2 m³, it will be necessary to call specialists for removal every three days

Varieties of septic tanks with high GWL

Storage septic tanks at a high level of groundwater - an analogue of a cesspool

A large tank is installed underground to save space on the site

The location of the structure is chosen in accordance with the considered rules. Depth is determined by the level of soil freezing. It should be higher than the main tank. A suitable neck is selected accordingly.

In this version, one camera is sufficient. To simplify control, a float sensor is installed, which signals the fullness of the container. Since a fairly frequent emptying is expected, the installation site is chosen closer to the border of the land plot, a wide and solid passage for trucks is equipped.

Expert opinion

Water supply and sewerage design engineer, LLC "ASP North-West"

Ask a specialist

“Remember the standard distance to public roads - at least 5 m.”

Budget septic tanks for summer cottages without pumping

Wiring diagram for installing a septic tank for a summer residence

These kits are available in different versions. The main container is divided by partitions into 2-3 functional parts. The standard package includes a cover, an inspection ladder, a ventilation system pipe, and other components. As a rule, the model range is made taking into account typical needs. It is easy to find an option suitable for a particular property.

For your information! With the correct choice of equipment parameters, solid waste disposal will be required no more than once a year.

Biological treatment stations

What does a biological treatment plant consist of?

After multi-stage treatment of wastewater, a good level of purification is provided. Modern stations are capable of removing up to 97-98% of all impurities, which corresponds to the best multi-chamber septic tanks for summer cottages. Such structures are ideal for areas with high groundwater levels. They are airtight, perform their functions without an additional drainage field. Regular removal of solid sediments in this case is not required. Routine flushing can be done by yourself or with the help of a service department.

Comparative analysis of different septic tanks for summer cottages with a high level of groundwater

Type of septic tank	Advantages	disadvantages
Cumulative	Light weight, reasonable cost, tight design. Lack of filtering fields, complex mechanisms and technologies. Ease of maintenance.	The need for regular use of the services of sewage services. Significant loads on the road surface.
Multi-chamber	Long-term preservation of working capacity without calling the sewage equipment. High level of cleaning.	Possibility of environmental pollution due to incorrect installation of the filtration field. Decreased efficiency in the presence of substances, dangerous microorganisms in the effluent.
Biological treatment station	Compactness. Ease of installation. No additional cleaning area.	High price. Such equipment must be connected to the mains. Its complexity implies an increased likelihood of breakdowns.

Features of materials for the manufacture of cameras

Concrete septic tank with high groundwater level

A septic tank consists of many components - basic and additional.

The standard solution for our project will not work. Septic tanks for cottages with high groundwater levels are well insulated to prevent environmental pollution. To do this, close the bottom of the third tank, remove the drains from it to the drainage field.

High-quality factory-made reinforced concrete products retain their integrity for decades. They are designed for significant mechanical loads. They are not damaged by aggressive chemicals. However, it is necessary to take into account the difficulties during transportation, in the course of unloading and installation operations. To install large products, it is necessary to dig a large pit. It will take careful sealing of the joints, additional equipment with a hatch, connecting pipes.

With the use of standard reinforced concrete products, it will not be possible to optimize the volume. When the soil is heaving in winter, the displacement of the rings is not ruled out. In such a situation, soil pollution occurs. To restore the integrity of the structure and joints, a complex set of works is performed.

Plastic, combined materials

In such products, protection against loads is provided by a metal frame. Useful:

• tightness;
• chemical neutrality;
• light weight.

But, as in the previous example, you will have to handle standard containers of a certain volume. You will need additional equipment with a neck, a large hatch, connecting pipes. The total financial and labor costs will be quite large.

It is more profitable to buy a ready-made kit

The photo shows typical features:

• flat support (1) providing good stability;
• stiffening ribs (2) to strengthen the structure while maintaining low weight;
• separate functional chambers (3) designed for sequential wastewater treatment;
• built-in pipes (4);
• mines (6) and hatches (5).

With a small weight, such a structure is pushed up with an increase in the level of groundwater. It needs to be fixed in the correct position. The disadvantages include limited strength.

Metal

Related article:

Device, principle of operation, location requirements, independent equipment of treatment facilities for a private house - read in the publication.

Such a product can be made by yourself if you have the appropriate skills or by ordering in a specialized workshop. In any of the selected options, it is permissible to use the desired size, shape, placement of internal partitions, and other unique solutions. By applying a sufficiently thick sheet, it is easy to provide the necessary strength.

However, it should be noted the significant cost of a high-quality steel septic tank. The work of a skilled welder is highly valued.

A layer that protects against corrosion is required. It can be damaged during installation. Therefore, special care will be required, careful preparation of the base.

Fixing a septic tank against floating and protection against soil heaving

Algorithm of mounting operations:

1. The pit is dug in accordance with the scheme provided for by the manufacturer's instructions. Observe the established slope of the walls.
2. At the bottom, a sand bed of 250–350 mm is made, followed by compaction.
3. Install concrete slab. From above, an additional layer of sand is made (without stones and other large fractions) with a thickness of 150–200 mm.
4. Drop the septic. Install props if there are no flat supports.
5. Fill the container to ½ of the nominal volume with water.
6. Anchors are screwed into the reinforced concrete slab. Cables (tapes) are connected to them. Fix the septic tank in the desired position.
7. Fall asleep free space in the pit in layers (200-300 mm) with a rammer. Add water at the same time.
8. To prevent damage by heavy transport, a reinforced concrete slab with a hole for the hatch neck is installed on top.

When installed in clay soil, the septic tank is pushed out by heaving forces. They form where water turns to ice and then expands. To prevent damage, the container is installed at a depth below the freezing level. It is also useful to replace the original soil with sand, which allows moisture to pass through and performs damping functions.

Installation of an above-ground filtration field

If there are no natural elevations, an artificial embankment is created. To supply wastewater there, a pump is installed in the distribution well. Pumping equipment is selected taking into account the contamination of the liquid.

For your information! The location of the finishing part of the cleaning at ground level and above increases the cost of the project.

Rating of manufacturers of septic tanks for high groundwater levels

A place	Brand	Features of the model range	Notes, positive features
1.	Topas	The range includes models with cleaning performance - from 0.8 to 3 m³ or more in one day. To increase efficiency, the manufacturer offers multi-stage processing in multi-chamber septic tanks (up to 5 working volumes).	The narrow specialization of the manufacturer helped to take a leading position in the market. Experts and users note the high quality of cleaning, reliability, timely introduction of the latest specialized technologies.
2.	Tank	Septic tanks under this brand are represented by the domestic enterprise Triton Plastic. Productivity of popular models: 0.6−1.8 m³/day.	Reasonable pricing policy is complemented by careful development of the smallest details. These wastewater treatment plants are well prepared for operation in difficult conditions.
3.	Triton	A special series of the production enterprise "Triton Plastic". In the current model range there are storage tanks and multi-chamber septic tanks.	Affordable cost, wide range, ease of installation on their own.
4.	Termite	Performance of popular septic tanks (m³ / day): 0.4; 0.6; one. The range includes models specially adapted for installation in areas with a high level of groundwater.	Seamless casting technologies allow you to create strong, durable structures without defects. Each product is checked by a special set of tests before shipment to the distribution network.
5.	Poplar	The manufacturer offers specialized equipment for domestic and commercial purposes. In the appropriate equipment, a large septic tank of this brand is able to clean more than 20 m³ of wastewater per day.	The equipment of this brand is distinguished by the high quality of compressors and other additional components. A higher position does not allow taking the limited technological solutions.

Estimated prices for septic tanks for summer cottages

Brand/Model	price, rub.	Specifications, notes
	79800−82300	Productivity - 0.8 m³ / day. Volley discharge - up to 175 l. Designed for a family of four.
	35 800−37200	Storage device. Volume - 3 m³. Weight −135 kg.
	48 500−49800	Multi-chamber septic tank for summer cottages with a high level of groundwater. Volume - 2.4 m³. Productivity − up to 0.9 m³/day.
	92 400−96500	The volume of processing per day is up to 1.9 m³. Volley discharge - 470 l. Electricity consumption - 50 W / h.
	71 500−73600	Cleaning performance − 0.5 m³/day. For a family of 2-3 people. 40W compressor included.

For a detailed acquaintance with the parameters of the models you like, you can find the corresponding reviews on the Internet.

qwelle13, Moscow: Advantages: comfort! Fast installation, no dirt on the site! The installation of a septic tank takes place in one day. Work began at 10:00 am and ended at 4:00 pm. Turnkey works, that is, you can immediately use the toilet. The final cost includes the price of a septic tank, delivery, installation, adjustment.

Disadvantages: Maintenance is required once a year, but apparently it is indispensable.

More on Otzovik: http://otzovik.com/review_619103.html.

What is the best septic tank with a high level of groundwater

Correct conclusions can be drawn only after a careful preliminary study of the actual conditions on the land. In addition to the groundwater level, they check the possibility of placing equipment in accordance with applicable rules and regulations. Clarify the usual and maximum needs, mode of use. Based on the collected data, a suitable model is searched for.

Use the appendix to the publication for answers to additional questions. Here you can also post your own comments on cleaning methods, features of the operation of specific septic tanks for summer cottages with a high level of groundwater.

Video (installation of wastewater treatment equipment):