Septic tank



How to Build a Tight Septic Tank?

When the property is not connected to the municipal sewage system, the investor faces the task of choosing a method for self-disposal of wastewater. Many people opt for installing a septic tank. However, it's important to remember that it should be a tight septic tank to ensure its efficient use and avoid environmental hazards.

Lack of access to sewage infrastructure is a significant issue for residents. It's difficult to imagine life in a house where proper wastewater disposal is not functioning. Installing a septic tank will provide a solution to this problem. However, before commissioning the service, it's worth considering what type of septic tank to choose and familiarizing oneself with the operational conditions of the system.

Types of Residential Septic Tanks

The decision to install a septic tank is the first step towards implementation. It's also important to choose a specific type of residential septic tank. Investors can choose between concrete septic tanks and plastic septic tanks, which are often referred to as eco-friendly septic tanks.

Concrete Septic Tank – This type of residential septic tank is made from concrete rings that are sequentially placed in the excavation. Then, the tank's bottom is concreted, the rings are sealed, and sewage connections are established. The sealing of the rings ensures a tight septic tank. Concrete septic tanks are more cost-effective than the second option, but unfortunately, they often prove to be less watertight than plastic septic tanks. When installing a septic tank, attention should be paid to the quality of the concrete used to ensure durability and efficient functioning for years. It's also important to note that the concrete tank is covered with a heavy lid, and their transportation and installation are quite challenging, requiring appropriate equipment. When is it worth choosing a concrete septic tank? This solution is worth considering when the property has a high water table – the heavier concrete material will settle better in the excavation. This choice is also a good idea when, for example, a parking lot or driveway is planned above the tank.

Plastic Septic Tank – Another method of wastewater disposal is a plastic septic tank. This durable and lightweight solution is becoming increasingly popular. These systems are very easy and quick to install, as well as transport due to their lightweight nature. A plastic residential septic tank does not require special transportation or installation equipment (such as a crane, for example). Another advantage of this tank is that, thanks to the use of plastic in its production, it is highly resistant to external factors and corrosion – a plastic septic tank can serve investors well for many years. This solution guarantees tightness of the septic tank. However, a plastic septic tank cannot withstand heavy loads, so many people still choose to use reinforced concrete plates to provide additional load-bearing support for the tank. It's also worth noting that a plastic septic tank is considerably more expensive than a concrete tank for waste.


Septic Tank Tightness – Operation and Inspection

For a residential septic tank to serve the investor well over the years, it must be primarily tight. The waste that enters the tank includes feces and household chemicals. If these effluents penetrate the soil and groundwater, they can pose a significant threat to the natural environment and the septic tank owner. Furthermore, if the septic tank is not tight, groundwater can also infiltrate the tank. This situation will necessitate more frequent emptying of the septic tank, leading to higher costs.

How to Maintain Consistent Septic Tank Tightness? Proper system operation is very important. Above all, it should be remembered that a tight septic tank needs to be regularly emptied. Tank overflow can cause significant issues; for example, effluents might flow back and come out of pipes inside the house. In such cases, disinfection of the building and renovation or replacement of damaged items will be necessary. After such an incident, many people struggle with a persistent, unpleasant odor in their homes. If the residential septic tank backflows into the house through pipes, it's expected that fixing the damages can be costly and challenging. To prevent this situation, a specialized sewage level indicator can be installed in the septic tank to signal when the tank is full and ready for cleaning.

Maintaining septic tank tightness should also be ensured by providing tank ventilation. Both concrete and plastic septic tanks require access to air. The lack of ventilation can lead to increased pressure in the tank and hinder proper wastewater flow. Inadequate ventilation in the tank can also contribute to the formation of unpleasant odors in the bathroom.

If you notice any irregularities in the tank, it's important to call professionals who can inspect the septic tank's tightness. Local water supply workers also regularly check the proper functioning of septic tanks in the area. Any deficiencies or doubts indicating a non-tight septic tank prompt administrative action. In such cases, the septic tank owner is required to conduct a technical assessment of the tank by a specialist with appropriate construction qualifications.

Why Is Septic Tank Tightness So Important?

Ensuring septic tank tightness is a priority for the efficient functioning of the wastewater disposal system on the property. However, septic tank tightness is essential not only for the convenience and comfort of tank owners. A leakage of waste into the soil poses a significant threat to the environment and groundwater. Groundwater is often used as drinking water, and the risk of sewage contaminating it presents a major health hazard. For this reason, in areas where septic tanks are installed and groundwater is used, water quality must be regularly tested due to the potential risk of contamination.

Tight Septic Tank Installation with New-House Company

Are you looking for a company that can efficiently and professionally install a residential septic tank? We encourage you to collaborate with us. We are a construction company with years of experience and a proven, professional team of workers.

The New-House company has been operating in the market since 1991, offering comprehensive construction and renovation services. Our range of services also includes septic tank installation. Our employees are experts who, thanks to extensive knowledge and years of experience, know perfectly well how to create a watertight septic tank. We prioritize the best materials and tools, ensuring that our clients are satisfied with our services and that the septic tank remains watertight for many years. You can learn about feedback regarding our collaboration by visiting the following link:

If you have any questions about how we create watertight septic tanks or about our other services, we encourage you to get in touch with us. We are open to discussions with investors and are happy to answer all inquiries. Our consultants are available every day from 7 AM to 9 PM. You can contact us via email or phone. Our contact information can be found on our website:

Concrete Septic Tank Construction – What to Remember?

A concrete septic tank is one of the more commonly chosen solutions when the need for independent sewage disposal arises on a property. Investors opt for this method because it is associated with guaranteed low implementation costs. However, before commencing the installation of a non-drainage waste tank, it is advisable to familiarize yourself with the key legal, installation, and operational aspects. This article provides you with the most important information about the process of constructing a concrete septic tank.

How Does a Concrete Septic Tank Work?

Concrete septic tanks are nothing more than receptacles for household waste. Installation becomes necessary when a given plot of land cannot be connected to the local sewage system. Waste, including from toilets, bathtubs, showers, sinks, or basins, is collected using special sewage pipes, which transport it to the concrete tank located on the property. Domestic concrete septic tanks, being non-drainage tanks, need to be regularly emptied using a cesspool truck.

Concrete Septic Tank Construction – Is It Worth It?

When investors compare various methods of waste disposal, they sometimes wonder if installing a concrete septic tank is truly the best solution. Of course, concrete septic tank installation has both advantages and disadvantages. It's worth analyzing them based on your own needs, expectations, and possibilities.

Costs – Building a concrete septic tank is one of the cheaper options, which is why many investors choose it. However, it's worth considering that the operating costs are not among the lowest – regular waste removal can be financially burdensome.

Quality of Construction – Concrete septic tank installation is an excellent quality solution. These tanks are highly durable and resilient. Watertight concrete septic tanks are a sought-after commodity on the market. They are made from strong material and are coated with a thick layer of insulation both inside and out. Concrete septic tanks are also highly resistant to external loads.

Construction Conditions – Installing a concrete septic tank often becomes the only viable option. Such a tank doesn't require a large area, making it suitable for small plots. Many investors opt for it when their Local Spatial Development Plan does not allow for the construction of an on-site sewage treatment plant.

Operation – There are cases where investors who have chosen to install a concrete septic tank encounter unpleasant odors in their homes. This could be due to poor installation, water siphoning from traps, or clogged sewage pipes. This issue should not arise when the construction of the concrete septic tank is entrusted to a reliable, reputable company. During operation, it's important to ensure proper ventilation and regularly clean the pipes using specialized clearing agents.

How Should Concrete Septic Tank Construction Be Done?

Well-made, watertight concrete septic tanks are readily available today. Manufacturers prioritize quality, as that's what investors seek. Only a well-made concrete septic tank will serve for many years. But how do you install such a tank? There are three ways to efficiently carry out the installation.

Ready-Made Concrete Septic Tank – You can opt to purchase a ready-made tank. This is an excellent choice as it's durable and watertight. They are highly resistant to external loads and are quick to install. However, their transportation to the property can be challenging. Ready-made concrete septic tanks usually weigh several tons, so special equipment (such as a crane) is needed to deliver and install them.

Concrete Septic Tank with Rings – This is a cost-effective solution for concrete septic tank installation. Rings are inexpensive to produce and easy to transport to the intended location. Unfortunately, using this method doesn't guarantee the same level of watertightness as ready-made concrete septic tanks. Additionally, it's worth noting that other installation components (seals, pipes, plates) can be quite costly, so building a two-chamber concrete septic tank might be more cost-effective than a three-chamber one.

On-Site Concrete Septic Tank Construction – This is a good solution for owners of non-standard plots. Such on-site concrete septic tanks are usually designed and constructed on location and can have unconventional dimensions. They are highly resistant to external loads and offer excellent watertightness. Installing an on-site concrete septic tank doesn't require large equipment, but it takes longer than installing a ready-made tank or one with rings. On-site concrete septic tank construction can take several days (usually two to three weeks).

Concrete Septic Tank Installation and Building Regulations

To ensure that the construction of a concrete septic tank complies with all legal regulations, it's worth delving deeper into the Regulation of the Minister of Infrastructure of April 12, 2002. One of the fundamental pieces of information to remember from this document is that concrete septic tanks can only be installed on plots without access to the local sewage network.

In addition, a concrete septic tank must meet specific conditions to be approved for use. It should:

  • Have an impermeable bottom and walls,

  • Include a cover with a tight, sealable orifice for waste removal,

  • Have ventilation extended to a minimum height of 0.5 meters above the ground,

  • Be situated at least 5 meters from doors and windows of buildings with people or food products,

  • Be located at least 2 meters from neighboring plots, roads, and pedestrian paths.

The above requirements apply to the installation of a concrete septic tank in single-family housing. If you're planning a larger project, it's advisable to additionally check specific legal recommendations. The larger the capacity of the waste tank, the greater the required distances that must be maintained.

It's also important to note that the installation of a concrete septic tank with a capacity not exceeding 10 cubic meters can be done by notifying the authorities. For tanks with a larger capacity, a construction permit will be necessary.

Building a Concrete Septic Tank with New-House

If your property doesn't have access to the local sewage system, you'll need to arrange for independent waste disposal. Building a concrete septic tank can be an excellent solution when entrusted to a suitable and experienced company, such as New-House.

Since 1991, New-House has been engaged in comprehensive home construction services. Providing end-to-end solutions means that we also take care of many indirect aspects of home building. Our wide range of services includes house design, utility connections, interior design, landscaping, and even concrete septic tank installation. Our team consists of trusted and proven specialists, allowing us to offer top-notch services. As evidence, we have hundreds of satisfied reviews from our clients:

The construction of a domestic concrete septic tank should be carried out under the supervision of professionals – we encourage you to collaborate with us. You can find our contact information at: We are more than happy to answer any questions you may have.


We are available 7 days a week, from 7:00am to 9:00pm

We will be happy to answer any question.
We encourage you to contact us.