What is Brick Septic Tank | How Brick Build Septic Tanks Are Designed | Life of a Brick Septic Tank | How Does a Brick Built Septic Tank Work

Brick Septic Tank

What Is Brick Septic Tank?

Septic tanks made of brick are usually divided into two compartments. When the wastewater in the first chamber reaches the level of the outflow pipe, it will overflow into the second chamber.

Dip pipes or T-pipes (depending on the age of the tank) are joined to the tank’s inlet and outlet pipes within the septic tank. The dip pipes are essential for keeping the particles from the wastewater contained within the tank and out of the drainage field.

The wastewater in a septic tank is not treated; instead, the solids in the water break down and split into three distinct zones:

  • The top part often referred as the crust, is composed of less dense stuff such as fats, oils, including solids which has not yet decomposed.
  • The next layer contains primarily wastewater with no solids, rather it is the water that exits the septic tank as well as enters the soakaway system.
  • Sludge is the lowest layer, which is made up mostly of more thick waste that accumulates over time. Throughout a typical septic tank emptying, this, along with the top layer of crust, should be eliminated.

Regardless according to exactly numerous chambers, a septic tank contains, this separating cycle continues again. The liquid is pumped out of the tank and through the soakaway system, where it will properly percolate.

Who Built a Septic Tank from Out Brick?

The operator who built a septic tank from out brick has adequate time reserves, understands how to use both a shovel as well as a trowel, and is prepared to put in long hours in the hopes of long-term construction.

One can begin building after doing basic calculations and calculating the volume of the upcoming foundation pit.

The following are some of the benefits of this option:

  • The brick product is built to last; the source material is readily available; the brick product is designed for long-term use;
  • Certain talents are required for bricklaying, but a house master’s capacity to adapt to any task can compensate for their lack.
  • Bricks may be used to construct any type of septic tank.
  • The brick tank may be any size, making it simple to match it to the site’s specifications.

The necessity for extra insulation of the brick, which does not have particular insulation qualities at first, is one of the drawbacks. Furthermore, the building of this facility will need a significant amount of time and work.

Also Read: What Is Aerobic Wastewater Treatment | Aerobic Treatment Unit | Aerobic Drip Septic System Cost | Aerobic Septic Maintenance

How Brick Build Septic Tanks Are Designed?

How Brick Build Septic Tanks Are Designed

These tanks’ designs have frequently been altered to accommodate ground conditions at the time of construction.

Due to hard rock, damp running sand, or too much water infiltration, their depths are frequently not as expected, causing excavation issues.

When circumstances influence design, the septic tank’s objective is jeopardized. A Septic Tank should ideally contain two chambers, the first of which should be twice as large as the second. They are frequently built with only one chamber. Another cost-cutting concession.

You’ll need bricks for the job, preferably a whole clinker 240x115x71. Single-row masonry and two bricks will be used to construct the walls.

Preparation is required:

  • 400 kg of cement (not lower).
  • Bitumen mastic is a common waterproofing material.
  • Stainless steel fittings that are ten millimeters thick.
  • a cover with a hatch for each of the cameras
  • Excavation and building tools are available.

The finished pit should be 10-15 centimeters higher than the future structure’s matching dimensions. Soil shedding will be avoided by using temporary formwork. 20-30 cm of gravel, followed by 40-50 cm of sand, is dumped on a flat pit bottom.

The resulting pillow is wetted and crammed tightly. On top of that, a reinforcing mesh is installed, then concrete (30 cm) is poured and allowed to set for ten days.

The walls are removed in accordance with the plan, leaving openings for the pipes. To strengthen the strength of the cement mortar, it is recommended that liquid glass be added.

Bitumen mastic is used for waterproofing, and a 3 mm layer is applied. The completed tank is ventilated, and a top plate with a hatch hole is fitted.

After connecting the septic tank to the sewage system, they fill the brick construction with clay. Filling the final building with clean water ensures that it is in good working order. The external insulation of the structure can be a clay castle with a width of 1 meter and a depth of half a meter.

Life of a Brick Septic Tank

A septic system’s lifespan might range from 15 to 40 years. This is because a septic tank’s life expectancy is affected by a variety of circumstances, including its materials and whether it has been damaged by vehicle traffic, groundwater flooding, or root clogging.

Type of Septic System

The type of septic system you have built has an impact on your life expectancy. Here are three of the most frequent system kinds, as well as the challenges that each one may face.

1. Steel



  • Steel sewage tanks rust over time, and factors like the acidity of the soil and the septic tank’s quality influence how quickly this happens.
  • Steel septic tanks erected 15 years or more ago are frequently deteriorated to the point that the baffles and tank bottoms are completely gone.
  • The coverings on these septic tanks rust out with time as well. A competent technician, on the other hand, can quickly identify all of these problems during routine checks.

2. Concrete



  • Concrete septic tanks have a far longer lifespan, lasting anywhere from 40 years to indefinitely if properly designed and constructed with high-quality materials.
  • If a septic tank is constructed with low-quality concrete in an acidic environment, the baffles and components are likely to fail much sooner.

3. Drain Field

Drain Field

  • The longevity of this system varies greatly based on a number of parameters, including the size of the drain field, the soil percolation rate, and how often it is used.
  • A big, well-maintained drain field on good soil may endure for more than 50 years, whereas a drain field with badly installed plumbing could last only a day.

The most efficient strategy to extend the life of your septic tank is to have it serviced on a regular basis.

Often people believe that septic tank maintenance only entails getting the tank pumped, but this is only one component of the process. Although you should get the tank emptied at intervals suitable for the size and use of your tank, one also should have it examined, at which time the expert should recommend any repairs or other maintenance.

The tank’s muck must also be cleaned. Just the clear waste is collected from the septic tank once it is pumped. Solid scum is kept remains, and it can build up over time. This chemical must also be eliminated to guarantee that the tank continues to operate correctly.

Also Read: What Is Water Leakage from Ceiling | Signs of Water Leaking from Ceiling | What Are the Signs of Ceiling Water Damage?

Factors of Effect the Longevity of Your Septic Tank

Aside from regular maintenance, there are a number of additional elements that influence the lifetime of your septic tank. While some are beyond your control, there are certain things you can do to help it live longer:

1. Design and Quality

The longevity of your septic tank and septic system as a whole will be extended by proper installation, a well-chosen location, and good soil.

If your tank is improperly installed, it will most likely not last as long as it could. If you put your tank in a flood-prone area, the leach field may become clogged, reducing the tank’s lifespan. The lifespan of your system can be harmed by a high water table or poor soil conditions.

2. Material

Tanks made of concrete and fibreglass can last for almost 40 years. Steel tanks, on the other hand, rust out in a fraction of the time.

3. Workload

The frequency with which the system is used has an impact on its lifespan. Using your system less can extend its lifespan and reduce maintenance costs, resulting in significant savings.

4. What Goes In

You may also extend the life of your tank by not flushing down any chemicals or non-biodegradable materials.

How Long Does a Brick Septic Tank Last?

  • Septic systems typically endure between 15 and 40 years. It’s a wide range, however, this is due to the fact that the average lifetime is entirely reliant on a variety of circumstances.
  • Septic system service is the most important factor in determining the longevity of your septic system, and this includes more than just septic tank pumping.
  • While your septic tank should be emptied at least every three years (more frequently if you use garbage disposal frequently), septic service includes more than just pumping away the waste. A professional septic service provider will not only pump your tank but also inspect it to see if any other repairs are required.
  • When a tank is pumped, it simply removes liquid waste, leaving behind scum that accumulates over time. This must be cleared out to guarantee that the system continues to function properly.
  • Having your septic system repaired on a regular basis (just like your car, furnace, or any other large-ticket item) is the simplest method to extend its life.
  • Septic tanks can be constructed from a number of materials, each having its own typical lifespan. Steel tanks can survive anywhere from 20 to 30 years before deteriorating due to weathering.
  • Plastic tanks have a slightly longer longevity, with an average lifespan of 30-40 years. Concrete tanks, which can survive for 40 years or more, are the most durable alternative.
  • When having a concrete tank installed, make sure you pick a company that has previously dealt with them. People adore concrete tanks because they survive virtually indefinitely, however poor quality concrete that is not correctly poured will fail in a matter of years.
  • The condition of your soil will determine this. Acidic groundwater can eat away at a concrete septic tank if there is a lot of it in your land. The business you select will be able to inspect the area surrounding you and advise you on which tank to install.

How Does a Brick Build Septic Tank Work?

Here, two parts of brick build septic tanks work are as follows.

1. Septic Tank with a Soakaway

  • These can be made of a variety of materials, such as brick or concrete. Fiberglass or polyethylene are frequently used in more recent systems.
  • The waste solids produced by a property are settled and retained in a septic tank. This is commonly accomplished by creating many chambers within the tank and use T pipes or baffles.
  • Septic tanks should only be emptied when the solids levels within the tank have reached a certain level. After that, the settled liquid drains into a soakaway or drainage field. The drainage field is designed to use naturally occurring microbes to clean waste wastewater.
  • The septic tank must be in good operating order and the subsurface must drain freely for this process to work.
  • Fine suspended materials are transferred from the septic tank into the drainage field over time, and the bacteria develop biomass, which clogs up the drainage field. This reduces the drainage field’s efficiency and the rate at which it can release effluent into the subsoil.
  • When the flow into the system from the home exceeds the flow out to the subsurface, the drainage field becomes clogged. This can cause effluent to seep to the surface or drainage to back up into the house.
  • Larger volumes of water produced by modern homes, as well as a variety of chemicals and detergents in the trash, hasten this trend. These obstruct the tank’s settlement process as well as the drainage field’s biological processes.
  • These characteristics, when combined with contemporary environmental and building standards, can result in an area where a septic tank drainage field was formerly suitable becoming non-compliant.

2. Septic Tank with No Soakaway

  • If ones septic tank releases immediately to surface water, it is no longer fulfills the criteria of the Environment Agency, and individuals will be required to consider replacing or enhancing your treatment system by the date specified, or even when you sell your property if you sell even before date.

Can a Septic Tank Be Made of Bricks?

Local septic systems have previously been created using brick or stone. Modern septic tanks are made out of either industrial plastic or precast concrete. Some tanks are also made of fiberglass, though this material is uncommon in the United States.

How Long Do Brick Septic Tanks Last?

Typically, a soakaway will last 10 to 20 years, but 60 years is possible too! While I have described the effect of not de-sludging on the bottom solids, the top crust, or floating solids can be an even bigger menace.

How Does a Brick Built Septic Tank Work?

Once the wastewater reaches the level of the outlet pipe in the first chamber, it will overflow into the second chamber. The dip pipes play a crucial role in retaining the solids from the wastewater within the tank, and preventing them entering into the drainage field.

Advantages of Brick Septic Tank

Here, the pros of brick septic tank are as follows.

  1. More cost-efficient:  Extensive sewer lines are very expensive to build and maintain. On the other hand, a septic tank is cheaper to install and doesn’t come with monthly maintenance costs.
  2. Durability: When properly maintained, a septic tank rarely needs to be replaced.
  3. Environmentally Friendly: Septic tanks do not contaminate the water supply. They remove bacteria before water is released into the soil. Plus, the recycled water is absorbed by nearby plant life.
  4. It has a long life span and lasts for several years.
  5. Septic tanks are relatively affordable and economical.

Disadvantages of Brick Septic Tank

Here, the cons of brick septic tank are as follows.

  • It is not suitable for highly congested areas.
  • It must be cleaned at a regular interval of about two years.
  • In some cases, due to the lack of efficiency of the tank, it may lead to contamination.
  • Due to the lack of proper maintenance, the septic tank may produce a foul odour.

What Is the Design of a Septic Tank?

A septic tank must be designed with acid-resistant inlet and outlet baffles or tees, inspection pipes at least 6 inches in diameter over both inlet and outlet, and an access manhole at least 12 inches in diameter. A single tank is used most often, but multiple tanks can be hooked up in series.

What Is the Normal Shape of Septic Tank?

The shape of the tank is circular. Explanation: The shape of the septic tank can be rectangular or cylindrical. Septic tanks are used for wastewater with a high content of settleable solids, typically for effluent from domestic sources.

What Material Is a Septic Tank?

Concrete, fiberglass, and plastic are commonly used. Concrete is sturdy, and it’s still used for some septic tanks today. However, although concrete is a relatively affordable tank material, it’s not considered the longest-lasting modern septic tank material due to two downsides.

Types of Septic Tank

  • Concrete. Concrete septic tanks.
  • Steel. Steel septic tanks.
  • Fiberglass. Fiberglass septic tanks.
  • Plastic. Plastic septic tanks.
  • Aerobic. Aerobic septic tanks.

What Are the Two Types of Septic Tanks?

There are two basic septic system types conventional and alternative. Site and soil conditions generally determine the type of system that should be installed.

How Brick Built Septic Tanks Are Designed?

Once the waste water reaches the level of the outlet pipe in the first chamber, it will overflow into the second chamber. The dip pipes play a crucial role in retaining the solids from the wastewater within the tank, and preventing them entering into the drainage field.

Life of a Brick Septic Tank

The lifespan of a septic system varies widely from 15 to 40 years. This is because there are many factors that affect a septic tank’s life expectancy, including its materials and whether it has experienced damage from vehicle traffic, flooding by groundwater or clogging by roots.

How Long Does a Brick Septic Tank Last?

Age of the System. It’s pretty common for a septic system to last 40 years or longer, which means if you buy a new home, you might never need to replace it.

Old Brick Septic Tank

Septic tanks work by allowing solids to settle in the bottom of the tank and the liquid to drain out. The first septic tanks were normally brick-built, consisting of 2 or 3 chambers. As you can see from the above diagram, baffles stop the floating solids from getting through, and out of the chamber.

Brick Septic Tank Problems

  • Most common septic tank problems and failures, with both brick and fibreglass ones, are due to the soakaway drainfield and not to the septic tank itself.
  • Excess sodium (salt) in soils with fine particles of silt or clay causes Sodium Binding

Cost of Brick Septic Tank

Brick Septic tanks cost between $3,174 and $10,366, or $6,766 on average. A typical 1,000-gallon tank installation for a 3-bedroom home ranges from $2,100 to $5,000. Materials cost between $600 and $2,500 without labor. A complete septic system, including a leach field, tank and piping costs $10,000 to $25,000.

How Does a Brick Septic Tank Work?

Typically, a soakaway will last 10 to 20 years, but 60 years is possible too! While I have described the effect of not de-sludging on the bottom solids, the top crust, or floating solids can be an even bigger menace.

Brick Septic Tank Cost

While the national average for installing a septic tank is $ 6,361, the high end cost to install a septic tank system is $ 18,650.

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