The owners of suburban facilities using a drain pit know from experience how often it is necessary to pump out effluents from the reservoir. And if suddenly the container began to fill up too quickly, this cannot but raise questions. After all, this situation forces us to use the services of sewers more often, and this increases financial costs. So, if the cesspool fills up quickly, what to do in this case?
Before the construction of a local sewage system, the system performance is calculated. If, after a few years of operation, the sewer tank begins to fill up too quickly, it is necessary to find the reason for this. Let's figure out what to do if the cesspool quickly fills with sewage. You should start by identifying the causes of the malfunction.
Looking for reasons
In order for the local sewage system to function properly, it must be serviced regularly. The main task of the owners is to ensure the timely pumping of accumulated effluents. The pumping frequency is determined by:
- volume of tanks;
- the amount of waste generated in the house;
- tank design.
Advice! If a septic tank or a filtering drain pit is used on the site, then pumping out will need to be done infrequently, since the main part of the effluent, water, will be removed from the tank. It will be necessary to pump out only the heavy part of the effluent, which settles to the bottom in the form of sediment. But a sealed drain pit-drive requires more frequent cleaning - as it fills up.
Filling the drive depends only on the flow of water in the house. Therefore, if the drive began to fill up too quickly, it means that the water consumption in the house has increased. But if the septic tank or the filter drain pit began to overflow, then you need to look for the cause of the failure in the system. The most common causes leading to a deterioration in the performance of a sewer installation are:
- bottom silting;
- build-up of a layer of fat on the walls and bottom of the tank, due to which the useful volume of the installation decreases;
- freezing.
Advice! Another signal of a malfunction in the local sewage system is the appearance of a sharp putrefactive odor that can spread throughout the site and even appear in the house. Therefore, if a strong unpleasant odor began to emanate from the drain pit with the hatch tightly closed, you need to look for the cause and take corrective measures.
We eliminate silting
So, if you notice that the drain pit is filling up quickly, it is recommended to take action immediately.
Procedure
Most often, the reason that the tank began to fill up too quickly is a decrease in the throughput of the filter layer at the bottom. After all, it is through the filter layer that water, which makes up most of the domestic sewage, goes into the ground.
Silting of the filter layer is an almost inevitable process, but the rate of silting depends on the composition of the effluents. Rapid silting contributes to getting into the drain:
- a large amount of fat;
- toilet paper;
- detergents;
- non-degradable items - rags, plastic bags, etc.
What will need to be done if the drainage layer of the pit is silted up? The procedure for such a situation:
- perform the most complete release of the tank from the contents, using special equipment (sewage truck);
- this is followed by filling the tank with ordinary water, this will soften the formed silt sediment;
- after a few hours, add special biological preparations to the tank to decompose sludge. It is recommended to choose the drug option marked "Intensive". Such preparations contain colonies of microorganisms that destroy organic sediment in the course of their life;
- after a few days, once again, completely clean the pit with the help of a sewage machine.
If you managed to achieve a result, and the silt that filled the drainage layer was recycled, then the pit will be able to work flawlessly for several more years.
Silting in winter
In order for biological preparations to work, the temperature in the tank must be not only positive, but also sufficiently high (+10 degrees) temperature. Such conditions cannot be created if it is winter outside.
In this case, instead of biological preparations, it is recommended to use chemical agents. They can "work" even in severe frost. In addition, chemicals, unlike biological preparations, are resistant to the action of disinfectant additives that may be contained in household chemicals.
The only, but very serious drawback of chemicals is their unsafety from the point of view of environmental protection. The safest chemical option for cleaning pit latrines is the nitrate oxidizer.
If the problem could not be solved
If, despite the use of biological preparations, the drain pit continues to quickly fill with effluents, drastic measures will have to be applied. In this case, two solutions are possible:
- construction of a new pit with backfilling of the old one;
- construction of another tank and its connection with the previous one. Both tanks are connected by an overflow device and the treatment plant begins to work on the principle of a septic tank.
Work of the treatment plant:
- in the first tank, in which the filter layer is almost completely clogged, the effluents will undergo primary settling, here the largest inclusions will settle to the bottom;
- relatively pure water containing a much smaller amount of impurities will enter the second tank through the overflow pipe;
- settled water entering the second tank will be filtered through a layer of sand and gravel at the bottom, soaking into the soil.
Fat deposits
Large amounts of fat can be found in kitchen drains. Fat particles settle in the sewer pipe and on the walls of the sewer tank, forming a dense sediment. Over time, the lumen of the tube can be filled with fatty deposits almost completely.
Sediment on the walls of the tank will gradually reduce the usable volume of the drain pit. To clean the system from fatty deposits, it is recommended to use special biological agents marked "Anti-fat".
In addition, it is possible to clean pipes and tanks using special equipment - a machine that cleans pipes and tanks from the inside using steam or hot water supplied under pressure.
Advice! To prevent a large amount of fat from entering the sewerage system, it is recommended to use special devices - grease traps. They are installed under the kitchen sink.
Freezing
Often problems with overflow of the pit occur in winter, since drains can freeze in severe frost. In this case, the water will not be able to escape. How can you defrost a frozen drain hole?
Such a malfunction is eliminated quite simply. But the method can be applied provided that the person doing the defrosting work has the skills to handle electricity and knows the safety precautions. In the absence of skills, it is better to entrust the work to specialists.
Advice! You must first wear rubber boots and use rubber gloves.
To get started, you need to prepare the following details:
- copper wire, rated for 2 kW;
- metal hook;
- a metal pin with a length of at least 20 cm.
The procedure for defrosting the drain pit:
- we connect the metal fittings with the wire, it must be driven into the center of the ice block in the sewer tank
- the opposite end of the wire is connected to the hook;
- the hook is thrown onto the element connected to the power supply.
Advice! You can use a wire with a plug attached, in this case, after driving the pin, the plug will just need to be plugged into the network.
After the completion of these works, all that remains is to wait. The waiting time depends on the amount of ice and the outside temperature. Defrosting can take from several hours to several days.
After the ice is melted, you need to de-energize the wire, and then remove the pin from the pit. And to reduce the risk of freezing drains in the cesspool, it will be necessary to perform high-quality thermal insulation.
To defrost frozen drains in the cesspool, you can use the services of specialists. For example, a machine can be used to supply hot water vapor to the reservoir.
So, if the drain pit began to overflow with drains faster than usual, you need to try to restore the drainage, since the filling of the pit is due to the fact that the water stops leaving through the drainage layer. Drainage can stop flowing water due to silting or freezing. And in order to reduce the likelihood of a drain pit failure, you need to take care of this structure in a timely manner - periodically clean it of accumulated sediment, use biological preparations to reduce the amount of sludge, and perform high-quality thermal insulation.
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