What to do if the rings of the drain pit have sunk?

Constructions of drain pits from concrete rings

To understand the causes of the displacement and determine the method of repair, it is necessary to have a good understanding of the structural features of sewer structures. For the most part, they are buried in the ground, therefore, you need to be able to understand the characteristics of the soil. First, let's recall the technology of mounting drives from concrete rings.

How to build a sewer storage tank?

There are many options for building a drain pit, without which the local sewer system would be inferior.

A volumetric tank, buried in the ground at some distance from the house, serves to collect wastewater.As a building material for the assembly of the structure, cement pouring, ready-made concrete rings, brickwork and even rubber car tires are used.

Scheme of a storage sewer tank, during the assembly of which 2 standard concrete rings were used, and the function of the bottom is performed by a building slab made of concrete

Let us dwell on a storage well made of reinforced concrete or concrete rings. Large (with a diameter of 1 m or more) parts are quite heavy, so both transportation and installation of components is carried out with the help of special equipment and workers.

But durable and fairly wear-resistant elements of a cylindrical shape are of low cost, so half of all cesspools in summer cottages and small cottages are built from them. For the construction of an underground structure, 2-3 factory-made rings will be required.

It is difficult and irrational to make similar parts on your own, while all the components of the storage tank are on sale:

• rings of standard diameter;
• closed element for bottom device;
• round floor slabs;
• necks of smaller diameter (additional);
• plates with a hole for the hatch.

Rings for assembling a sewer well at the dacha you can do it yourself. A step-by-step guide to making them is given here, we recommend that you familiarize yourself with very useful information.

After preliminary calculations, they acquire the necessary kit, from which they assemble the sewer well. Before installing concrete parts, it is necessary to dig a pit, slightly larger than the cesspool in width and depth.

The part that is closed on one side, which performs the function of the bottom, can be replaced with a reinforced concrete slab.It is placed on a leveled base and fastened with staples to the bottom ring.

The first element is placed on a flat base - the bottom of the structure, then put each on friend from 1 to 4 rings, carefully sealing the joints. To protect concrete, mastic or other waterproofing is applied on both sides (external and internal).

After backfilling, only part of the neck and the technical hatch remain visible on the surface. It is needed for regular maintenance - pumping out accumulated waste.

An article that analyzes all possible construction options will introduce the traditional schemes and rules for calculating the depth of the drain pit.

Features of the cesspool device without a bottom

A drain pit without a bottom is no longer a storage tank, but a structure with partial filtration of wastewater. The lower part of the cesspool is not clogged, but is equipped with a kind of filter - a thick layer of sand and gravel. The loose "cushion" passes through itself a liquid medium directly into the ground, retaining solid and large particles.

If you want to build the simplest treatment plant, you need at least two tanks: the first is the same storage tank, and the second is a filter well.

In the first, solid wastes settle and are partially processed, and the settled liquid flows into the next tank. Further anaerobic cleaning and liquid penetration into the soil takes place in it.

A scheme of a septic tank made of concrete rings, consisting of 3 chambers: a storage tank and two filter wells. If the elements of one of the parts sag or shift, the entire system will fail

If the only container is made filtering, cleaning will be ineffective, and wastewater will remain as dangerous to the environment.In addition, the filter - a sand-pebble mixture - will have to be changed over time, since pollution and clogging of its waste will occur quickly enough.

If you want to make a pit without a bottom so that you don't have to call vacuum trucks more often, one tank is not a way out. The construction of a cesspool with a soil filter occurs in the same sequence as a conventional drive, with one exception.

Instead of arranging a sealed bottom, it is necessary to pour a thick layer of sand, and then gravel. Do not forget about two important requirements: the enclosing soil must be sandy, in extreme cases, sandy loam, and groundwater must be 1 m or more below the soil filter covering the bottom.

Restoring the absorption capacity of the soil

This method is relevant only for owners of cesspools and homemade open-bottom septic tanks. In this case, to restore the absorbency of the soil, you will have to flush the sewer, and this is done as follows:

• We call a sewer and pump out the contents of a cesspool or septic tank.
• We fill the container, but not with fecal sewage, but with clean water.
• We let the water stand for a day, during which we do not use chlorine-containing preparations (detergents and cleaners) under any pretext.
• or biological products with an increased dose of such microorganisms. If this is recommended by the manufacturer of the preparations, we repeat the procedure for 5-7 days.

As a starting drug, we can recommend the following options:

Project preparation

Even the simplest design septic tank or cesspool requires calculations, because the size of the structure depends on the daily amount of wastewater and other conditions.Only correct design will give confidence in the efficiency and reliability of the structure, and pre-drawn drawings will help to avoid errors in work.

Material calculation

The calculation of the number of rings is based on the volume of effluents, which, in turn, is determined on the basis of the amount of water consumed by the family. In your research, you can use the average data on water consumption per person in the amount of 200 liters per day, or resort to the help of special tables.

The dependence of the volume of the septic tank on the number of family members

To calculate the size of the receiving tank, the amount of wastewater per day is multiplied by three. Based on this value, the number of concrete rings and their size are determined. For example, a family of 3 would require a 1.8cc primary chamber. m. (600 liters per day times 3). For this, two standard rings with a diameter of 1 m and a height of 0.9 m will be enough. If 8 people live in the country house, then you will need a tank of 4.8 cubic meters. m, which is about seven reinforced concrete products. Of course, no one will build a seven-meter-deep septic tank. In this case, take three rings with a diameter of 1.5 meters.

When calculating, you can use tables of dimensions of standard reinforced concrete structures and formulas for determining the volume of a cylinder. For the most common rings with a diameter of 1000, 1500 and 2000 cm and a height of 0.9 m, the internal volume is:

• KS-10.9 - 0.7 cu. m;
• KS-15.9 - 1.6 cu. m;
• KS-20.9 - 2.8 cubic meters. m.

In the marking, the letters denote the “wall ring”, the first two digits are the diameter in decimeters, and the third is the height in tenths of a meter.

The minimum size of the post-treatment chamber should be at least 1/3 of the total volume of the septic tank

The size of the post-treatment chamber is calculated based on the fact that the first chamber occupies 2/3 of the volume of the septic tank, and the second - the remaining third. If we apply these ratios to our example of a treatment system for 8 people, then the second tank should have a volume of 2.4 cubic meters. m. This means that you can install 3 - 4 concrete elements KS-10.9 with a diameter of 100 cm.

When calculating the amount of materials, it is necessary to take into account the depth of the drain line, taking the entry point of the pipe into the septic tank as the upper level of the receiving chamber. The size of the structure is increased by an amount sufficient to ensure that the floor slab is 5–10 cm above the surface of the site. To do this, use one or two standard rings, and if necessary, supplement them with additional elements. If this is not possible, or after the construction of the cottage there is a red brick left, then the upper part of the septic tank chambers is built from it.

Drawing

Before starting earthworks, a detailed drawing of the structure is drawn up, indicating the depth, points of entry and exit of pipelines, levels of the overflow system. Since the distance from the surface of the site to the lowest point of the sewer line depends on the degree of freezing of the soil, these values ​​differ depending on the region and soil composition. In addition, it is imperative to consult with local experts about the level of groundwater in the area, to which from the bottom septic tank should be a gap of at least 1 m. Depending on this, a decision is made to increase the diameter of the chambers, which will lead to a decrease in the height of the tanks.Drawings and diagrams can help in the process of work, you can be guided by them when drawing up your own design of treatment facilities.

Required Tools

The upcoming earthwork, installation and waterproofing works require the preparation of the following tools and materials:

• bayonet and shovel shovels;
• construction stretcher or wheelbarrow;
• solution containers;
• concrete mixer;
• perforator or impact drill with a nozzle for concrete;
• level and plumb;
• roulette;
• concrete rings, floor slabs and bottoms, hatches;
• pieces of pipes for the overflow system;
• bituminous waterproofing;
• sand and cement;
• rubble.

If it is not possible to use lower rings with a bottom (glass rings) or floor slabs and bases, then you will have to make these concrete products yourself. To do this, you will additionally need steel bars and reinforcement to reinforce the structure, as well as long corners or channels as supports for the upper plates. In addition, you need to take care of the formwork boards and the plastic film used for waterproofing.

Use of chemicals

Chemical compositions help to effectively eliminate silting, eliminate bad odors. These products are resistant to any thermodynamics, but are not suitable for use in a frozen pit.

The sewage tank is cleaned with the following types of chemicals:

• Liquid formalin;
• lime chloride;
• Salt ammonium oxidizing agents.

The listed chemicals are effective in liquefying fecal matter, dissolving organics and converting waste into a high concentration standard alkaline solution. The main disadvantage of these chemicals is the high level of carcinogenicity, toxicity, which are harmful to health and the environment.

For domestic purposes, nitrate oxidizers are the safest. An additional advantage is the possibility of using oxidation decay products as a fertilizer. A significant drawback of the tool is the high price.

Design features

Despite the fact that a cesspool can be made from almost any available materials, it is recommended to use concrete rings to design a system with overflow. They perfectly combine affordable price and high quality.

Recommended arrangement scheme

Each sump consists of a bottom, walls and a lid. The device of the first tank is strictly hermetic, because it is draft. This container collects waste from the house, toilet and other consumers. The second and subsequent waste tanks may be leaking.

Each drain is located relative to each other at a small angle - up to 20 degrees. The connection is made with T-shaped pipes. These pipes must be located at least 1 meter from the extreme upper part of the pit.

Pit design with overflow

When waste enters the primary or draft tank, some of it immediately settles to the bottom. The liquid mass moves through the T-shaped pipe to the next tank for filtration, settling and subsequent use.

Tips for arranging cesspools with overflow:

1. The first container must be sealed. The pit is covered with a waterproofing film, and the concrete rings are treated with resin. The second, often, is equipped even without walls. This allows for maximum permeability of treated liquid waste. For protection, the bottom is arranged in a special way (it consists of several layers of stone, sand and construction debris);

2. To ensure the best conductivity, bioactivators can be added to the rough sump to dissolve solid feces and other waste. With regular use of bacteria, you can generally get rid of the need to use sewage services;

3. When arranging this type of pit on sandy or other moving soils, the complete filling of the pit with fine-grained gravel is used. This design performs two functions: it strengthens the walls of the tank and guarantees excellent filtration of wastewater.

Stop subsidence

Structural settlement may be temporary or permanent. During temporary shrinkage, the rings sink to the level of stable soil layers, after which further subsidence stops. If significant shrinkage has occurred, the structure is built up with a new link or the height of the structure is increased with red brick.

The problem of constant subsidence of the concrete tank is more serious. It is better to entrust this task to professionals.

In most cases, they manage to fix the existing position of the rings and take measures to stop their further displacement.

Bottom pit equipment

To stop the process of ring settling, it is necessary to equip an already functioning storage pit with a bottom. To do this, you need to do the following types of jobs:

1. Pump out all waste and clear the pit of solid deposits.
2. Pour a layer of gravel on the bottom. Its thickness depends on the characteristics of the soil. In some cases, up to 30 cm of gravel is required.
3. Install a reinforced base of thick, 10 mm in diameter, steel bars around the entire perimeter of the bottom.To do this, holes are drilled in the lower ring to a depth of 2/3 of the thickness of the concrete wall with a step equal to the distance between the rods (about 200 mm), and rods are inserted into them.
4. Fix the rods together with wire.
5. Fill the structure with cement mortar.
6. After the solution has dried (about a week), resume the operation of the drain pit.

If it is difficult to make a bottom using the technology described above, a mesh of rods is installed in a frame of two hoops and installed directly on the bottom of the pit. It is necessary to install locking pins in the wall of the reinforced concrete ring, which will prevent the grid from moving along the bottom. Liquid waste will pass through the grating bars into the rubble and be subjected to natural filtration.

Fixation of the lower ring

In order for the drain pit to stop further shrinkage, you can lock the lower ring with steel pipes. To do this, it is necessary to make four through holes in the link walls at a height of half a meter from the bottom and through them to drive into the ground cuttings of steel thick-walled pipes, the cross section of which should be at least 5 cm, and the length should be half (or slightly less) the diameter of the well. The gaps around the supports are coated with cement mortar. To prevent drains from seeping into the soil, the openings of the pipes are sealed with concrete plugs. The installation of steel supports will strengthen the structure of the drain pit and help prevent further subsidence.

Properly executed installation of a drain pit made of reinforced concrete rings will avoid shrinkage of the links into the soil and subsequent deformation of the structure. In order to avoid problems in the operation of the sewer facility, it must be remembered that the pit must be equipped with a bottom, and the links of the well are fastened together.The stability of the structure will be strengthened by steel pipe supports.

How to unfreeze a hole

As a rule, the freezing of the drain pit in winter is prevented by the snow layer and the thermal insulation system, but it happens that at very low temperatures the waste freezes. What to do if the cesspool freezes in winter?

It is possible to defrost waste in a cesspool using an extension cord, copper wire, a steel rod 20-30 cm long and a gripper.

In cases where only the sewer pipe is frozen, it is wrapped with a copper conductor, which is connected to the phase wire. Under the influence of current, the thawing of the pipe will take 2-3 hours.

When the entire pit freezes, a steel rod is driven into the middle, to which a copper conductor is attached. This is followed by the phase voltage supply. In this case, the pit will thaw for at least 24 hours. After the work is completed, the voltage is first turned off, and then the rod and wires are removed.

The further functionality of the sewer system depends on how well the work will be done.

Among most popular construction cleaning methods allocate:

• manual cleaning with a bucket that is tied to a rope;
• pumping with a fecal pump;
• pumping out the pit with a cesspool machine;
• biological treatment with biological preparations containing bacteria;
• chemical cleaning.

How to remove sludge from a cesspool with a bucket? To do this, it is necessary to dilute the silt itself with water, take a bucket and a rope. You tie the bucket to the rope and independently sink to the bottom pits, scoop up waste and all the liquid, and so gradually pull it out.This is a rather unpleasant procedure, as disgusting aromas come from the device. Moreover, it is only possible if your pit is without a bottom and has a shallow depth. After completing the procedure, be sure to fill the bottom with gravel in order to facilitate subsequent cleaning of the bottom. Cleaning sludge from cesspools by hand must be carried out in a special protective suit in order to avoid the ingress of toxic gases into the body.

How to clean a cesspool of silt using a fecal pump? This is an automated, easy way. You will need a fecal or water pump, as well as a special sealed container for waste disposal. If you have an automatic pump, then you need to place it inside the pit, it will filter out sewage and pump it out on its own as it fills up. If semi-automatic, then you will need to control the pumping process. Liquefy the liquid before pumping it out, pump it out and dispose of the waste. Flush the hole with water and pump it out again. The fecal pump crushes large human waste.

If you have sludge in the cesspool, then you can also clean it with the help of special biobacteria. There are special biological preparations for cleaning cesspools. It can be powder, liquid or tablets, all this is added inside the structure. They reduce the mass of liquid and solid household waste by 80%, moreover, they interrupt and completely remove unpleasant odors from the site, prevent the appearance of sludge, clean the sewage pipes and walls of the device from sludge. All this increases the service life of the plant.Moreover, these biological preparations are completely environmentally friendly and safe for adults, children and animals. As part of biological products there are special microorganisms (bacteria), it is they, getting into the drains, that begin to act and destroy the unpleasant odor and decompose sewage. For example, you can choose . These drugs are used in all seasons, except for winter, as they freeze and die. All features of the use of bacteria are indicated on the back of the packages with them. As a rule, you just need to throw them into the structure every 2-3 weeks and wash the device regularly with water.

How to get rid of sludge in a cesspool using chemicals? If your device is silted up in winter, then instead of biological products you need to use a chemical preparation. For example, nitrate oxidizers. They are similar in composition to nitrate fertilizer and are considered environmentally friendly. As a result, a waste product is formed from the action, which can be used for fertilizer. Formaldehyde and ammonium salts are generally strictly prohibited, as they are unsafe for humans due to toxicity.

Chemical reagents thin the sludge, eliminate unpleasant odors and reduce the volume of domestic wastewater. They work even in an aggressive environment, if there is household chemical waste.

The device of the drain pit and the principles of its functioning. Reasons for the rapid filling of the tank. Ways to release the container from the contents.

Types of funds by form

Chemical and biological-enzyme agents for cleaning septic tanks and cesspools yam are produced in liquid form, powder, and also granular.At the same time, bacterial cleaning compositions are often produced in the form of special filters.

They are fabric or rubber brushes that contain a large number of active microorganisms. This type of cleaning agent is used exclusively in multi-chamber septic tanks or pits.

1. Liquid biological formulations are the most active and effective. They are a ready-to-use organic solution. Unlike powdered products or tablets, liquid formulations begin to act immediately after they are poured into the tank.

2. Chemical solutions also rarely need to be diluted with water, but at the same time, experts recommend reducing the concentration of these agents when used in metal drums. The metal is most sensitive to the effects of formaldehyde and ammonium, so if you pour a concentrated agent into the pit, you can damage the walls of the container;

3. Powders and granules are more convenient to store and have a long shelf life (especially for fermented products). They are very easy to measure and normalize depending on the volume of effluent or reservoir.

Products

For effective cleaning of cesspools, you need to use quality products. Some of the most famous means for cesspools are:

1. Dr. Robik. This is a well-known company that produces products for any plumbing needs. Products of this brand are represented by liquid solutions consisting of biologically active components or chemical compounds. Depending on the needs, you can buy a solid waste cleaner and solvent, an organic destructor, a chlorine and soap residue splitter;

3.Microbec Ultra is characterized by a three-phase action. First, the powder breaks down solid masses and other wastes, after which it neutralizes the action of soap. It is worth noting that the effectiveness of this product is significantly reduced due to exposure to chlorine;

4. Nitrate oxidizers are often sold from state-owned manufacturing plants. They are purchased wholesale - from 10 kilograms, and retail - 100 grams or less. The average cost of 100 grams of such granules is $ 2. More accessible are formaldehyde compounds, but they are much tougher, in addition, they corrode metal containers.

The role of drugs in cleansing

For do-it-yourself cleaning of cesspools, biological products and chemicals are used. They are able to solve the issue of functioning of an autonomous sewage system. As a result of their application:

• The smell is removed;
• Drainage wells, septic tank are cleaned;
• Organic waste decomposes;
• The bottom sediment is reduced;
• Waste water is disinfected.

An important note - regular use of drugs reduces the need for pumping wastewater, reduces costs

Effective cleaning agent - biological products

Preparations consist of microorganisms that are grown artificially. They help the decomposition of solid sewage in the sewer. Bacteria are cleaned of silt, fat, feces, remove the smell. Biological products reduce the mass of sewage, converting them into a liquid that is used for household purposes.

Means are issued in the form of powders, tablets, liquid solution. All drugs are divided into:

• 1. Septic tanks will help you effectively cope with the task of how to clean cesspools with your own hands. They decompose solid waste, improve drainage properties. It is based on cultural bacteria that live only in a specific environment.Therefore, where there is a lot of aggressive chemistry (powder, shampoo, etc.), bacteria die.
• 2. Antiseptics convert solid sewage into compost, which is considered fertilizer for the soil.

Features of the use of biological agents:

• Biological products are used at a temperature regime of +4 - + 30 degrees, and if they are used outside this regime, then the effectiveness will be zero.
• Biological products in an aggressive environment do not give an effect - they die.
• The cost of maintaining a septic tank is reduced.
• They do not affect the quality of the building materials that make up the septic tank.
• Protect the environment.
• It is better to purchase the drug from an authorized dealer, manufacturer, in order to protect yourself from fakes.

​

After falling asleep, the unpleasant odor disappears (after 4 hours).
Restores bandwidth.

Cleaning with chemicals

To clean cesspools with chemicals with your own hands, precautions must be taken, because drugs are harmful to health. The following chemicals are sold in stores:

• Nitrogen fertilizers. They are safe for health, but have a bad effect on the environment. Effectively clean up.
• Formaldehyde. No color, strong smell, dissolves in water, turns solid waste into liquid.
• ammonium compounds. Decompose solid particles, eliminate odor. It is better not to use if there are a lot of household chemicals in the tank, which reduce the effect.

Features of the use of chemicals:

They are used in winter.

​

They are not afraid of chlorine, hard water.
Badly affect the environment.
Cause corrosion of metal structures.
Solid particles are disposed of.

A cesspool is a structure that is considered an important element of the sewerage system. Maintenance must be done in an efficient manner. Under the conditions of use, the stock tank will serve reliably for a long time.

Prevention of cesspool subsidence

In order to save yourself from the time-consuming, and sometimes expensive process of repairing the storage tank, it is better to immediately provide options for protection against displacement and subsidence of the structure.

For this you need:

• to equip an even, solid, stable base;
• fix the bottom or a concrete slab that acts as a bottom;
• fasten all the links together with metal brackets;
• to make reliable sealing of joints;
• fill the tank from the outside with a sand-gravel mixture with cement.

The larger the design, the higher the risk of ring displacement, so the protection measures must be more reliable.

When processing the joints between the rings, do not forget to seal the points of contact of the pipes with concrete links. The gaps in the holes are eliminated in the same way.

With high groundwater and loose sandy soil, we recommend installing a sealed container rather than a filter well.

With sewerage repair by installing a plastic insert, the following article will acquaint you with the contents of which we advise you to read.

Video - sealing and waterproofing the seams of the well

When installing new rings, try to connect them together in order to prevent possible shifts. The easiest way to do this is with an ordinary wire threaded through the shipping loops. Then the wire is twisted.

In your well, one of the rings may move relative to the others. You may be able to correct this shortcoming.To do this, you will have to dig in the well and, with an effort, restore the position of the rings relative to each other. In any case, after the repair associated with the movement of reinforced concrete rings relative to each other, you need well seam waterproofing. After fixing the rings relative to each other, fill the free outer space with sand or soil.

Repairing a dry well

In a number of localities, the groundwater level has a pronounced long-term cycle. The duration of such a cycle can reach several tens of years, as a result of which, after a while, your well may suddenly become dry. An alarm signal can also be a decrease in the water level in the well. This issue is solved by deepening the well shaft, and the use of plastic rings to strengthen the walls will ensure the purity of the water in the well.

To deepen a dry well, the following activities are carried out:

1. At the preparatory stage, we dismantle the well house and pump water out of it.
2. We carry out a visual inspection of the state of the well well, if necessary, clean it and carry out disinfection measures.
3. We completely remove the bottom filter of the old well.
4. We lower the plastic ring to the cleaned bottom. We dig the soil under it and remove the earth from the well shaft.
5. Under the influence of gravity, the ring will gradually lower.
6. After sampling a sufficient amount of land, we install the entire shaft from plastic rings.
7. If there are sufficiently strong walls of the well charge, formed from reinforced concrete rings, it can be limited to installing 1-2 articulated plastic rings.In order to prevent the ingress of dirt from the gap between the plastic and concrete rings, a concrete mixture is poured.
8. A new bottom filter is filled at the bottom of the well, and the necessary infrastructure is mounted on top.

This is interesting: Is it possible to solder polyethylene pipes with polypropylene fittings - laying out the essence

Features of cesspools that do not have a bottom

Land for the construction of cesspools is not the same everywhere, so there are certain features in one case or another.

Important! As a rule, sewage is quickly able to quickly pass through sand and loess, so it enters the ground without prior filtration. This is dangerous because nearby water sources can quickly become unusable.

Cesspools without a bottom can contaminate a source of drinking water

To ensure effective protection of groundwater, it is necessary to carry out some work:

• If possible, reduce the surface area of ​​the earth through which runoff seeps. A good way out of the situation is the partial pouring of concrete mixture of part of the bottom of the pit. Due to this design, wastewater will not penetrate the ground too quickly, lingering in the tank for as long as possible;
• As for clay soils, they provide the opposite effect. Clay slowly and heavily passes water, which is why the sewer does not work at the proper level. In this case, it is desirable to lay additional outlets at the bottom of the pit. To do this, drill several holes in the ground, which provide for the installation of perforated plastic tubes. As a rule, the more such waste, the better the throughput;
• When deciding on the length of the pipe, it is worth considering that it should rise at least 1.5 meters above the surface of the pit. In a filled tank, there is always a risk of blockage of pipes, and to prevent this from happening, special plugs should be put on them. If a large number of holes are made in the pipe, then the water will quickly go into the ground, while solid inclusions will remain at the bottom of the pit in the form of sediment.
• You can dig another pit near the already finished hole. Between these tanks, a sewer pipe is laid under a slope. This slope is made away from the first hole to the second recess. The diameter of the sewer pipe laid in the trench must be at least 5 cm. Thus, when the water reaches the level of this pipe, it is poured into the second pit, while the solid fractions will remain at the bottom of the first tank.

Important! If a cesspool without a bottom is not cleaned in a timely manner, it may simply overflow. In order to eliminate this risk, it is recommended to install an overflow system

Such work does not take too much time, while there will be a tangible result.

A cesspool is a relatively quick and economical solution with which you can improve the sewerage system in your country house or suburban area. One of the disadvantages affecting the cost of maintaining such a structure is the fairly frequent use of a sewage machine for pumping wastewater, since the pit fills up and becomes dirty quickly. Also, the frequency of calling the car will depend on the number of people permanently residing in the house.In the process of constructing such a tank without a bottom, it is imperative to follow the sanitary rules and take into account all the requirements regarding the choice of the pit, as well as the distance from neighboring buildings and structures.

Recommended reading: Country toilet without a cesspool

Conclusions and useful video on the topic

With the help of videos, you will learn how to eliminate the consequences of subsidence or displacement of concrete sewer rings.

Video #1 Sealing joints with repair mortar:

>Video #2. Raberit waterproofing testing:

Video #3 Fastening the links with brackets:

Eliminating the causes of subsidence of the storage sewer tank is a laborious process that requires patience and professional skills. If you are in doubt about the correct determination of the cause of the displacement or do not know how to repair the cesspool, contact the professionals.

Do you want to talk about your own experience in repairing a drain pit with sagging rings? Do you know a proven way to restore its geometry? Please write comments in the block below, ask questions, divider with useful information and photos on the topic of the article.

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