If you are the owner of the cottage, then you should be aware of the issue of the autonomous sewage system. Quite often, consumers are faced with the problem of choosing a model. Buyers read reviews from which they manage to understand that among the large assortment of ready-made containers that are presented on the modern market, the BCS septic tank stands out. As practice shows, the company "Country sewer systems" produces high-quality designs that have many positive features and affordable cost.
Septic tank overview
The manufacture of the above structures is carried out from polypropylene sheet, its thickness can be equal to the limit of 5 to 8 mm. Such designs are divided into three components (first chamber, second chamber and third chamber). The first compartment is the primary sump, the second acts as a secondary sump. But in the third chamber are biofilters.
Sewage through the pipe enters the primary sump and is divided into light and heavy fractions. The overflow that connects the second and first sedimentation tanks is located at the level of a third of the height of the tank. This significantly reduces the content of impurities in the second chamber, which is especially true compared to the first.
The process of settling and clarification of sewage continues in the second compartment. Septic tank DKS uses in its work not only the mechanical separation of impurities, but also anaerobic digestion technology. The presence of oxygen is not required. During the course of the reaction, methane is released, therefore such facilities are called methane tanks. Bacteria that are present in feces are involved in the decomposition of contaminants during metabolism. Water gates exclude the spread of unpleasant odors that come from the septic tank.
The movement of clarified effluents subsequently occurs through an overflow pipe, water is in the biofilter, so mixing is completely excluded. The drip nozzle on the overflow pipe provides water distribution over the brush load. Not so long ago, manufacturers used expanded clay loading instead of a ruff. On the surface of the first, water is saturated with oxygen, which contributes to the formation of aerobic bioflora, which develops in favorable conditions.
The biofilter will work fine if the pipe with the tip is properly arranged. It is necessary for the intake of air, which is involved in the life of aerobic microorganisms. The drains that pass through the biofilter end up in the drainage system, they bypass the sump and the outlet pipe.
The perforated pipe acts as a drainage in this scheme , through its openings the clarified drains penetrate into the soil, where they undergo infiltration. Through the neck, the sediment is periodically removed, previously it accumulates at the bottom of the first and second compartments. Maintenance and revision of the system is carried out through the second neck. In winter, to prevent freezing of containers, it is recommended to deepen the structure using the neck extension kit. It is bought by the consumer separately.
Features of different models
Septic tank DKS is offered for sale in several models, each of which is designed for a certain number of people living in the country. If you plan to operate the house year-round, then this should affect the choice of design. For example, for a device of autonomous sewage, which is installed at the weekend cottage, the “Mini” septic tank is perfect. Its volume is designed to serve 4 people maximum. The device will process 120 liters of sewage per day.
Septic tank "DKS Optimum" and models DKS-15, DKS-25 differ in processing capacity per day and weight of structures. It is based on polypropylene, which is a lightweight material, so the installation of the tank does not include the use of special equipment and human efforts. The design is installed in a prepared place. The housing allows you to place the structure near the house.
Septic tank "DKS 15m" and "DKS-25 M" suggests the presence of a drive for the installation of a drainage pump. These options can be used in areas where groundwater levels are high. In winter, these solutions can be used with a kit that goes deep into the soil. Its elements are classified by height and performance.
Additional features of septic tanks. Consumer Reviews
Septic tank DKS, reviews of which you can read below, is made of polypropylene. Due to this, according to consumers, the designs are lightweight and are sold at affordable cost. This allows for easy transportation of the system to its destination.
To date, the manufacturer mentioned above offers for sale many models of sewage treatment plants. All of them differ in performance, parameters, weight and approximate cost. For example, the septic tank "DKS 15" can be purchased for 35,000 rubles. The width, length and height of the device are 1100 x 1500 x 1100 mm. The weight reaches 52 kg, and daily productivity is 450 liters.
Septic tank DKS 25 is a system with a capacity that reaches 800 liters per day. It weighs 72 kg, and costs 47,000 rubles. Its dimensions are larger and equal to 1300 x 1500 x 1500 mm. Septic tank "DKS MBO" is offered in several variations that differ in performance. For example, the MBO 0.75 model is capable of cleaning 750 liters of sewage per day. You can purchase this version of the device for 68 rubles. In this line, this cost is the most affordable. If the MBO 1.0 model is in front of you, then this indicates that its productivity is 1000 liters per day, and the system weighs 92 kg. You can buy it for 73,000 rubles.
Installation procedure: site selection
To install the described system for wastewater treatment at the first stage, you need to choose a place. It should be near the house, but it is important to ensure the possibility of access of a cesspool machine for pumping sludge. At this stage, you should analyze the soil where the purification system will be located.
You will need to find out how deep the groundwater is. The correct condition for the location is the proximity of the septic tank to the sewer corrugated pipe from the house. When installing DKS septic tanks, it is important to ensure their remoteness from utility networks and electricity sources. You should not choose a place near a tree that has a powerful root system.
Tank installation
The next step will be to dig out a rectangular hole for mounting the working tank. Next to it will be a trench for placing pipes. The bottom is filled up with an even layer of sand, the thickness of which is 10 cm. The septic tank “DKS 15m” is installed in the pit, the reviews of which you could read above.
From all sides the system should be covered with clean sand. Better if it is wet. During installation, water is constantly poured into the tank so that the structure is held in a horizontal position. On all sides, the septic tank is lined with polystyrene or other thermal insulation.
Pipe installation
As soon as the septic tank is in place, and you manage to sprinkle it with sand for stability, you can proceed with the installation of sewer pipes, they must be given a slope for the flow of sewage into the tank. The optimal distance from the septic tank to the house is the limit of 3 to 6 m.
Drain pipes must be directed straight to the tank. If turns cannot be avoided, then a rubber pipe should be used at the bend. The tank is leveled with the help of a level, during which the sand around is periodically compacted. Pipes are also filled with soil.
Installation of ventilation and drainage pipes
In order to ensure the drainage of water purified in the septic tank, a drainage well or corrugated drainage pipes should be used. The latter option is more profitable than a well, but you must decide on the choice of a particular system yourself. Pipe installation requires additional space underground above groundwater.
Drainage pipes should be located in the trench, they are corrugated rubber pipes, which have holes at the ends. To do this, prepare a trench with a depth and width of 0.5 m. Its length will be 10 m, if space allows. Pipes are laid with a slope of 1 cm per meter.
The bottom of the pit should be laid out with polypropylene, and then lay the pipes and fill them with expanded clay. The surface is covered with soil. To ensure proper decomposition of organic substances, ventilation is required. The pipe for this is installed in the tank, however, its location must be considered individually.
Septic tank service features
It is better to have the treatment system in access to it from time to time to carry out maintenance and scheduled inspection. When installing, follow the instructions and consult with specialists. Correct installation will simplify use and will not bring additional hassle.
For reference
Designs of septic tanks made of heavy materials provide for the use of special equipment during installation. This can not be said about the treatment plants of BCS, which are based on polypropylene. Its light weight allows for easy transportation, as well as installation without special equipment.
Conclusion
The assortment of the company includes the simplest models and complex systems, the latest of which are designed for operation in problem areas. All this expands the possibilities of choice. Before starting work, it is important to consider that seasonality will not affect the functioning of the system, so installation can be done in the winter, without performing additional manipulations on insulation, which is very convenient and reduces labor costs.