Which Is Better A Cement Septic Tank Or A Plastic? (Solution found)

Cement Septic tanks are very durable than plastic tanks and, if kept properly, can have extended longevity. With regular draining and proper maintenance, a cement septic tank can last for up to 40 years. Cement septic tanks are resistant to environmental changes such as tree roots or changing soil conditions.

  • Plastic tanks are less prone to cracking since plastic is flexible, and thus a plastic septic tank does not crack as much as a cement septic tank. Plastic septic tanks are more hygienic than cement tanks. Plastic tanks come ready to be set up and installed.

How long do cement septic tanks last?

Inspectapedia estimates that a steel tank baffles will rust out in 15 to 20 years and may collapse if driven over, but a concrete tank will last 40 years or more as long as the wastewater is not acidic. It’s important to consider the life expectancy of a drain-field, too.

Is concrete septic tank good?

Very durable: Concrete septic tanks are much more durable than their plastic counterparts. Long-lasting: Concrete tanks last a very long time. With proper maintenance and regular draining, a concrete septic tank could last up to 40 years. Driving over the soil where a concrete tank was buried will not affect it.

What kind of septic tank lasts the longest?

Concrete septic tanks have the longest lifespan out of any septic tank material. While they are more expensive and sometimes difficult to install, it is for a good reason. A properly designed and installed concrete septic tank can last for anywhere from 40 years and beyond.

Which is better concrete or fiberglass septic tank?

While concrete is known for its durability, fiberglass septic tanks are even more durable. Once buried, fiberglass tanks become completely inert. Unlike concrete, it won’t degrade, rust, or weaken. Fiberglass septic tanks also require less maintenance than concrete septic tanks do.

What is the alternative to a septic tank?

Mound systems work well as alternatives to septic tanks when the soil around your home or building is too dense or too shallow or when the water table is too high. Although they are more expensive and require more maintenance than conventional systems, mound systems are a common alternative.

What will ruin a septic system?

Any paper products like tissues, paper towels, tampons, or sanitary products, even some heavier toilet paper, will clog your system if you flush enough of it. Wet wipes are another product that you should never flush into a septic system.

How long does plastic septic tank last?

A septic tank can last between 20 and 40 years. The lifespan depends on the tank’s material. A steel tank lasts 20 years, while a concrete tank lasts 40 years. Plastic tanks can last as long as 30 years.

Do concrete septic tanks leak?

The most common problem with concrete septic tanks is that they crack, which causes leaks and problems with soil contamination. If the leaks are only minor, usually they can be repaired and sealed; allowing you to get more life out of your tank.

Do plastic septic tanks collapse?

Guide to Plastic or Fiberglass Septic Tanks Fiberglass or Plastic Septic Tanks: are very resistant to some of the problems occurring with concrete (cracks) or steel (rust) septic or home made (collapse) septic tanks.

Are plastic septic tanks good?

Plastic septic tanks are watertight and are immune to water-based corrosion. They are also rust-resistant. Plastic tanks are less prone to cracking since plastic is flexible, and thus a plastic septic tank does not crack as much as a cement septic tank. Plastic septic tanks are more hygienic than cement tanks.

How often should a septic tank be replaced?

Typical lifespan is in excess of 30 years for GRP, PE and concrete tanks. Assuming optimal conditions of install and use, you could expect the following: Steel septic tanks have a life expectancy of 15 to 20 years.

How can I make my septic tank last longer?

How to Extend the Life of Your Septic System

  1. Do conduct annual inspections.
  2. Do conduct regular tank cleaning.
  3. Do know where your septic system is.
  4. Do keep septic system maintenance records.
  5. Do reduce water load into your septic system.
  6. Do avoid draining other water sources into your leach field.

How long do fiberglass septic tanks last?

Fiberglass Septic Tank Cost Depending on the construction methods, the condition of the soil, and the materials used while manufacturing, a fiberglass tank can last as long as twenty to thirty years.

What is the cheapest septic tank?

Types of Septic Tank Systems These conventional septic systems are usually the most affordable, with an average cost of around $3,000.

Plastic vs. Concrete Septic Tanks

Evaluation- Please keep in mind that backhoe pits are required and that the septic installer must call someone to dig the pits and schedule an appointment with the Health Department. A building site is selected for the construction of a house, mobile home, or commercial facility. B. The Local Health Center must be contacted in order to obtain an ONSITE SEWAGE DISPOSAL SYSTEMS APPLICATION FOR SITEEVALUATION (form DFS-319). When it comes to dwellings, the following information is required: the total number of bedrooms, if a trash disposal will be placed, and whether a basement will be included in the construction.

Installers are also needed to submit to the health department the $240.00 evaluation charge, which is required by law.

g) The examination is carried out in conjunction with backhoe or other types of pits A “usable” area for a prospective septic system installation is discovered as a consequence of the site study results.

Compaction and soil structure damage are prohibited in order to ensure that the system’s capacity to perform is not adversely impacted in any way.

  1. Unless the Certified Inspector specifically states otherwise in writing, normal mowing or bush hogging of the area would be permitted.
  2. PERMISSION TO INSTALLLA Onsite Sewage Disposal Systems (OSDs) may be implemented if the site has an overall grade of appropriate or temporarily acceptable, as determined by the Site Evaluation Report (DFS-321).
  3. Before any of the work is covered by the insurance, the installer must seek an examination by a Certified Inspector from the Health Department.
  4. In order for final approval to be obtained, the system must be implemented in conformity with the authorized permit requirements.
  5. Before a permanent electric connection may be created, it is required by state law and municipal electrical regulation that the Local Health Department provide final clearance.

Plastic Septic Tanks

  • Plastic septic tanks are less expensive to purchase and install than concrete septic tanks
  • They are also more environmentally friendly. Easy to carry: Because plastic is significantly lighter than concrete, plastic septic tanks are less difficult to transport to your residence
  • Installation is less difficult: In contrast to concrete septic tanks, installing plastic septic tanks does not necessitate the use of heavy machinery. Also available are plastic septic tanks, which may be installed in a wider range of settings. Inhibition of corrosion by water: Plastic septic tanks are entirely impervious to water-based corrosion. Exceptionally fracture resistant: Because plastic is more flexible than concrete, plastic septic tanks do not crack nearly as frequently as concrete tanks.


  • Plastic tanks are not nearly as durable as concrete tanks and are therefore crushable. It is possible that they will be crushed under the weight of the dirt. Plastic tanks have been known to burst when vehicles drive over the regions where they were buried in the ground. Plastic tanks are sensitive to the environment and may burst or rupture as a result of changes in soil conditions or vibrations in the vicinity. Concrete tanks, on the other hand, are far less vulnerable to environmental degradation. Damage is a possibility because: Plastic septic tanks are more prone to breaking or warping than concrete septic tanks for a variety of reasons, including: Plastic tanks may require significantly more care than their concrete equivalents
  • However, this is not always the case. Concretized septic tanks tend to have a longer lifespan than their nonconcrete counterparts, however this is not always the case.

Concrete Septic Tanks

  • Concrete septic tanks are far more robust than their plastic equivalents
  • They are also less expensive. Exceptionally long-lasting: Concrete tanks can survive for hundreds of years. An untreated concrete septic tank can live for up to 40 years if it is properly maintained and regularly drained. Concrete septic tanks are often not influenced by changes in their surrounding environment, such as shifting soil conditions, the growth of tree roots, or any other difficulties that may arise. Driving over the soil where a concrete tank has been buried will have no effect on it
  • Yet, Septic tanks made of concrete are less prone to failure than those made of plastic since they are more durable.


  • Expenses that are higher: Construction of concrete septic tanks is more expensive than the installation of plastic septic tanks. Installation is more challenging in the following cases: Due to the fact that concrete is heavier and more unwieldy than plastic, installation will take longer and will necessitate the use of heavy equipment. Because concrete tanks are not as resistant to corrosion as plastic tanks, they may ultimately corrode or break as the tanks age. This is more likely to occur if they are not adequately maintained. When it comes to repair, the following is more disruptive: If your concrete septic tank is broken, it might be difficult to repair it effectively, especially when compared to plastic tanks.

The following options are available when it comes time to select a new septic tank: Both types of tanks have their advantages, so the decision comes down to which one you believe would work best for your house and budget. Concrete tanks are more robust, but they are also more expensive, whilst plastic tanks are less expensive, but they are also more delicate. For any more information regarding septic tank installation, please do not hesitate to contact The Pink Plumber at your convenience.

We can install both plastic and concrete septic tanks, and we can assist you in determining which is the best option for your needs and budget. OUR EXPERT PLUMBERS ARE AVAILABLE TO HELP YOU.

Poly Septic Tanks vs Concrete: What They Don’t Tell You About Concrete Septic Tanks

When it comes to selecting a new septic tank, you have a choice between these two options. It comes down to personal preference as to which style of tank you believe will work best for your household. The cost of concrete tanks is more, but they are more robust, whereas the cost of plastic tanks is lower but they are more brittle. For any more inquiries regarding septic tank installation, please do not hesitate to contact The Pink Plumber at any time. Depending on your needs, we may build either plastic or concrete septic tanks, and we can assist you in deciding which is the best option for you.

Septic Tank: Concrete vs Plastic

Despite the fact that concrete septic tanks are known to persist for a long time, they have a number of flaws, particularly when maintenance is neglected over time. If the quality is poor, they may even break during the manufacturing process. Advantages of a Concrete Septic Tank

Are said to be long-lasting with proper maintenance.

Disadvantages of Using a Concrete Septic Tank

As mentioned earlier, concrete septic tanks are heavy. Because of their heavy weight, they require different types of heavy equipment during installation, leading to more expense.

Poly septic tanks provide a number of advantages that exceed any potential disadvantages. Disadvantages of a Poly Septic Tank The fact that plastic septic tanks are lightweight and have the potential to “float” when water tables rise is perhaps the most significant reason why many object to their use (e.g. during extremely heavy rainfall). However, there are ways to avoid this from happening in the first place. The 2,200-litre poly septic tank built by Coerco. Advantages of a Poly Septic Tank

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Poly septic tanks are watertight despite their lightweight quality.

It is undeniable that both concrete and polyethylene septic tanks require regular maintenance. When it comes to determining which type to choose, though, you might want to think about the long term implications of your decision. What modifications will be done to your property at that point? What about the costs of upkeep, removal, and relocation, for example? Septic tanks made of polyethylene are unquestionably the most trustworthy option if you’re looking for something that’s simple to maintain, install, and transport while also being quite reliable.

Wouldn’t you contact a firm that is competent, well-organized, and inventive and that can meet all of your commercial and household demands if you discovered such a company?

How much does a septic tank weigh?

And what is the significance of weight? Polyethylene septic tanks weigh roughly 200 kilos, but their concrete equivalents weigh approximately 1,500 kilograms, according to the manufacturer. The ramifications of having large septic tanks For many years, concrete has been the material of choice for septic tank construction. Concrete, on the other hand, is a fairly heavy substance. When it comes to establishing a septic system, this results in increased prices. Working with concrete septic tanks entails a number of expenses, the first of which is the purchase of a larger truck and a crane.

  1. The ordinary poly septic tank, on the other hand, weights far less than the conventional cover for a concrete tank.
  2. Is it possible to relocate a septic tank?
  3. Given the weight and difficulty of moving some types of septic tanks – such as concrete – some people find it far easier to just purchase a new septic system rather than attempting to relocate a used septic system.
  4. Notably, because of its weight and vulnerability to collapse, concrete septic tanks are a potential source of hazard for homeowners.

The 4,000-litre poly septic tank built by Coerco. It’s small and lightweight, and it’s simple to put together. Note from the editor: This piece was initially published on October 6, 2017, however it has been completely rewritten and modified for the aim of accuracy and comprehensiveness.

Plastic Vs. Concrete Septic Tank

Plastic and concrete septic tank alternatives are available whether you’re installing a new septic tank or replacing an existing one, and you’ve probably seen them before. For the most part, homeowners are not overjoyed at the notion of shelling out a significant sum of money for something that essentially does nothing but handle wastewater. Although this is a significant commitment, it is not one that should be taken carelessly. They both have advantages and disadvantages, and we hope that this list will assist you in making a more informed selection.

Plastic Septic Tanks

Increasingly popular as an alternative to concrete septic tanks are plastic septic tanks. Typically, they are pre-fabricated and have an oblong oval form with ridges running around the exterior walls. They are readily available at most home improvement stores and are ready to be installed as soon as they are delivered to your residence.


They are rather light in weight due to the fact that they are composed of plastic. They typically weigh a couple hundred pounds and can be handled with relative ease by a standard pickup truck. This means that not only is installation simpler, but it also means that all of the expenditures involved with it are reduced. Simply digging a hole, positioning the tank, and connecting the tank to the rest of your system is all that is necessary. Plastic septic tanks are a more affordable option to concrete septic tanks due to the fact that they are lighter and easier to install.


Compared to concrete septic tanks, plastic septic tanks are significantly weaker. In other words, driving anything over the tank may cause it to be crushed or otherwise damaged. Plastic septic tanks are also more susceptible to environmental variables such as soil vibrations and root penetration, which can cause cracking or warping of the tank’s outside. It is possible to fix some of the damage, but depending on how severe it is, the tank may need to be replaced entirely. In order to function correctly, septic tanks must have an adequate balance of sludge (solids), effluent (water), and scum (lightweight solids) in their contents.

If too much waste accumulates inside the tank, it can cause your system to overflow and the tank to “float” to the surface of the earth, causing damage to the plumbing lines in the surrounding area.

You will need to get them cleaned on a more frequent basis in order to prevent accumulation in the system.

Concrete Septic Tanks

Septic tanks made of concrete are a more conventional alternative. You have the option of either having a pre-cast concrete septic tank supplied to your home or having a tank put in place on your property.

As soon as the prepared option is delivered, it is ready to be implemented immediately. In order to use the poured in place method, you must first dig the hole and then create a mold to shape your tank.


Historically, concrete septic tanks have been the most common choice. If you want a pre-cast concrete septic tank brought to your house, you can do so, or you can have a tank put in site. As soon as the prepared option is delivered, it is ready to be implemented. It is necessary to dig out the hole and create a mold in order to make your tank for the poured-in-place option. Because concrete septic tanks are massive, they are capable of handling large volumes of sewage without experiencing any issues.


One of the most significant disadvantages of a concrete septic tank is the weight of the tank. They can weigh many tons, depending on the size of the house you need to build. With this amount of weight, it is evident that large machinery is required for transportation and installation, increasing the entire cost. Environmental variables such as soil vibrations and root penetration are less likely to cause damage to concrete septic tanks than are other types of septic tanks. They are, on the other hand, more difficult to repair than plastic tanks if they are damaged or broken.

There are a variety of criteria that go into selecting which system is the greatest fit for you.

Posts from the recent past

Plastic vs Concrete Septic Tanks. Which Should You Get?

We just purchased a property with an older septic tank, which prompted me to do some research on different types of septic tanks. It was not something I had anticipated spending time on. It had a fracture in it, and the vendor was going to replace it. The old concrete tank had been replaced with a new plastic tank, which I was astonished to discover after it had been replaced and we had moved into the house. I’d always assumed they were all composed of concrete until now. That prompted me to inquire: are concrete septic tanks preferable to plastic septic tanks?

  • However, to break it down fast, concrete septic tanks are excellent for their durability and long life.
  • Because I am very much a septic tank rookie (if there is such a thing), I wanted to learn everything I could about how to properly manage our system before we installed it.
  • I’d also like to know if our plastic tank is durable and will survive for several years, or if it will need to be replaced sooner rather than later.
  • Seeing as how I know that I’m not the only one who has concerns about septic tanks, I decided to put all of my results in one place to make it simpler for you to get the answers you’re looking for, as well.
  • As a result, I’ve included some information on pricing as well.
  • You should expect to pay more fees for labor and other materials if you are having your septic system repaired, replaced, or installed entirely from scratch.
  • A concrete or steel tank, if you have an older tank on your property, is most likely the material used.

The longer they remain in the ground, the more deterioration they experience.


Is it possible to picture your child running around in the yard and falling into it?!) Septic tank made of old, rotted steel Concrete, fiberglass, or plastic are the most common materials used in newer tanks on residential properties.

Here’s what I’ve learned so far.

Tanks made of plastic are typically oblong in shape with a lot of ribs on the sides and bottom.

It also aids in their ability to withstand external pressure such as that exerted by the soil and water.

This is important because a smooth-sided tank in the ground may be more susceptible to slipping out under certain conditions, such as super-saturated soil from heavy rains, among other things.

Pros: I believe that the weight and cost of a plastic tank are the most significant advantages it has over other options.

This means that you can purchase something from one of the major home improvement stores and transport it yourself using a truck or trailer to your destination.

In some cases, such as when installing the tank in a difficult-to-reach location with a large truck, the ability to transport it in the back of your pickup truck may be the deciding factor in whether or not to use plastic.

Consider the following points before deciding to use a plastic tank: 1.

For those who live in a particularly wet climate, the tank may shift or even rise as a result of the moisture in the ground over time.

This will not only be expensive, but it will also be inconvenient.

This also means that the tank cannot be placed in a location where it could be run over by a vehicle.

This is a significantly longer period of time than the average person spends in their home before relocating.

Septic Tanks Made of Fiberglass Septic tanks made of fiberglass and plastic are very similar in terms of cost and longevity.

As a result of fiberglass’s inflexibility, these septic tanks are structurally more sound than their plastic counterparts.

They are relatively light, weighing approximately 300-350 pounds for a tank of the typical household size.

If you were hoping to find fiberglass tanks at one of the big box home improvement stores, you may be disappointed.

Providing they are maintained properly, fiberglass septic tanks should last for 30 to 40 years.

Septic Tanks Made of Concrete Septic Tank Made of Precast Concrete Concrete septic tanks are extremely common in both older homes and new construction.

When a structure is constructed on-site, a hole is dug in your yard and a form (similar to a mold) is constructed inside the hole.

You can also purchase a septic tank that has already been cast.

Consider concrete barricades used as freeway dividers during construction, or sewer pipes, or even bridge pieces — all of these items were manufactured somewhere other than the location where they were intended to be used.

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A few significant advantages of concrete over plastic or fiberglass septic tanks are that they are stronger and can last for a much longer period of time.

Because it is so durable, it can be used indefinitely as long as it does not crack or separate (see Cons below).

They are more resistant to internal and external pressures than alternative materials and construction methods.

Cons:There are a couple downsides to a concrete septic tank.

This was the situation with the tank at our house when we purchased it.

Another issue, which you may or may not consider to be a downside, is the weight.

This will take a huge truck and hoist or crane to deliver and install it.

While you may not anticipate on staying in your home for 40 years, it is excellent news if you are acquiring a property with a concrete tank since it is probable it will serve you well for many years to come.

However, owing to the massive weight of a concrete septic tank, a significantly larger truck and a crane will be required to deliver and install it on the property.

Pros: Considering that they are not readily available, stating their advantages is a bit of a moot issue; but, they do appear to be a bit stronger than plastic, and certainly lighter than concrete.

Cons:Having discovered no advantages of a steel tank, the single most significant disadvantage of a steel tank is that steel corrodes, rusts, and eventually disintegrates!

They get extremely weakened and eventually fall away.

Not only is this disgusting, but it is also potentially lethal because septic tanks contain poisonous gases such as methane.

It could be worth it to replace the tank sooner rather than later, before rust and corrosion cause major difficulties down the road.

These are the findings I’ve reached as a result of my extensive investigation.

For those who are concerned about cost or who live in an area where huge trucks may have difficulty getting to your site, fiberglass tanks appear to be the most cost-effective choice.

Finally, plastic tanks are the most cost-effective and convenient option for those looking for the lowest possible price and the quickest possible delivery. Now that you have a new septic tank on the way, here are some pointers on how to keep it in good working order.

Plastic vs Concrete Septic Tanks

Do you intend to purchase a septic tank in the near future? Buying concrete or plastic is a good idea. Are you unsure which option is best for you? Because there are a variety of factors to consider when selecting a septic tank, it is important to understand the pros and disadvantages of each kind.

Plastic Septic Tanks

Some of the numerous advantages of adopting a plastic rather than a concrete septic tank are as follows:

  • Unlike concrete sewage tanks, plastic septic tanks are extremely resistant to breaking. Rusting isn’t a problem at all. Because plastic weighs far less than concrete, it is much easier to transport a plastic septic tank to its final installation position. It is more cost-effective to use a plastic septic tank rather than a concrete septic tank. Plastic septic tanks have the potential to be watertight and corrosion resistant.

However, there are some advantages to utilizing a plastic septic tank rather than a concrete septic tank. Some of these advantages include, but are not limited to, the following:

  • Plastic septic tanks have lower effluent levels than concrete septic tanks, which may be noticed when a tank is opened for pumping. If not placed properly, a plastic septic tank has the potential to “float” to the surface of the earth
  • However, this is rare. Because plastic is such a lightweight material, it is susceptible to damage during the installation process. In certain states, plastic septic tanks are not permitted to be used. (You may find resources for your state by clicking here.)

When is it permissible to use a plastic septic tank? When plastic septic tanks are legal in your state and when cost is a big concern, they may be the best option. At the end of the day, you must choose whether a plastic septic tank is the best option for your project.

Concrete Septic Tanks

The advantages are as follows:

  • Compared to plastic septic tanks, concrete septic tanks produce greater quantities of effluent. Because concrete septic tanks are hefty, they have little likelihood of floatation, in contrast to plastic septic tanks, which do. Concrete septic tanks are exceptionally long-lasting and resilient
  • They can survive for decades. There are no restrictions on the use of these septic tanks in any state.

The Disadvantages are as follows:

  • Septic tanks made of concrete are quite pricey. These septic tanks are susceptible to cracking under harsh conditions. The installation of concrete is quite tough due to the weight of the material. Despite the fact that concrete septic tanks are quite resilient, they are more prone to cracking and leaking.

When is the use of a concrete septic tank recommended? Concrete septic tanks are ideal in situations where concrete is required by zoning rules. Additionally, concrete is preferred by septic specialists when the value of the product is more essential than the cost.

Concrete vs. Plastic Septic Tank

Natalia Kokhanova/iStock/Getty Images is credited with this image.

In This Article

  • Septic tanks made of plastic
  • Septic tanks made of concrete
  • Selecting a septic tank

Septic tanks are a vital part of your property’s infrastructure, and it’s crucial to understand the pros and cons of the many materials that may be used before choosing on a particular type of septic tank to use. Concrete and plastic are the most often used materials for septic tanks, each of which has its own set of problems. Plastic septic tanks are built of a durable plastic that is significantly lighter and more cost-effective than concrete septic tanks. They are also more environmentally friendly.

  1. Plastic septic tanks, according to the Pink Plumber, are also fully impervious to water-based corrosion, and because plastic is more flexible than concrete, it is more resistant to some types of damage.
  2. The weight of heavy soil or the weight of vehicles driving over the tank might cause the tank to break.
  3. They have a lower effluent level and, if the water table is high, they may “float,” rising above the depth at which they were designed to operate.
  4. Finally, in certain states, the usage of plastic septic tanks is not permitted.
  5. Concrete tanks are more sturdy and resistant to environmental deterioration than plastic tanks, and as a result, they require less maintenance than plastic tanks on average.
  6. Concrete tanks are fully impervious to “floating,” and Septic Tank Pro says that concrete tanks have a greater effluent level than other types of tanks because of their weight.
  7. Concrete tanks, on the other hand, are significantly more costly, owing in large part to their weight.
  8. Installation necessitates the use of heavy equipment, and concrete tanks are often more disruptive to the environment during both the installation and maintenance processes.
  9. Concrete is frequently chosen as the default material since it is legal in every state, has been the preferred building material for a long time, and is more resistant to damage caused by weight or shifting than other options.
  10. Plastic tanks are far less expensive than concrete tanks, which can cost several thousand dollars or more.
  11. Septic tanks made of concrete can be damaged by high levels of acidic groundwater, hence plastic is the preferred material in these circumstances.

Despite the fact that there are several aspects to consider, both concrete and plastic septic tanks are excellent solutions. Take into consideration your current position as well as your geographic area, and then choose the one that feels most right.

Are Concrete Septic Tanks Better Than Plastic?

Disclosure: This post contains affiliate links, which means that if you purchase a product after clicking on one of our links, we may receive a commission or free product from the firms featured in this post. Amazon is a good illustration of this. Materials for constructing septic tanks range from concrete to plastic. Concrete and plastic septic tanks are two of the most often used materials for septic tanks. According to expectations, each form of septic tank has a number of advantages and drawbacks when compared to the others.

  1. Concrete septic tanks and plastic septic tanks will each have their own set of qualities, including a lifespan that is generally longer.
  2. For their part, concrete septic tanks may survive for 40 years or more, making them the most long-lasting solution available.
  3. It is important to note that the type of tank you select (whether it is made of plastic or concrete) is a factor in the process of successfully installing your septic tank.
  4. And if it is not correctly poured, it will most likely collapse in a matter of years rather than decades.
  5. When choosing a septic tank, it is critical that you consider both the pros and downsides of each option.
  6. These advantages include, but are not limited to the following:
Advantages Disadvantages
Highly resistant to cracks, unlike concrete tanks. The lightweight plastic or fiberglass material it is made of renders it susceptible to structural damage.
Rust-proof May shift in the ground in wet soil conditions.
Lightweight material makes it much easier to transport for and during installation Could rise out of the ground, breaking pipes in the process.
More cost-effective than its concrete counterpart. Not approved in all states.
Water-tight and corrosion-proof. Tendency to have lower effluent levels, which may be discovered after a tank is opened for pumping. This is due to dislodged tank plugs.

Pros of Plastic Septic Tanks. Plastic tanks are great since they are composed of strong and high-quality polyethylene, which makes them a considerably lighter choice than steel tanks. It is possible to finish the installation without the need of heavy gear or equipment as a result of the lightweight bulk. Furthermore, because plastic septic tanks are lighter and easier to move, they may be erected virtually anywhere. If your property is located in a more rural region, this might be a significant advantage.

  1. Plastic septic tanks are more resistant to difficulties such as cracking, rusting, and corrosion, which can occur in concrete septic tanks in the long run.
  2. Cons of Using a Plastic Septic Tank Even while plastic septic tanks are less expensive and more dependable than concrete septic tanks, they have certain drawbacks.
  3. It is possible for them to raise and move, or even tilt, as a result of wet soil conditions.
  4. Furthermore, even though polyethylene has been tested and proven to be robust, plastic septic tanks in general will not be able to endure harsh circumstances to the same extent that a concrete tank would be able to.

Septic Tanks Made of Concrete Many advantages exist when choosing to use concrete instead of plastic septic tanks, which include, but are not limited to: a more durable tank; less maintenance; and lower cost.

Advantages Disadvantages
Have higher effluent levels than plastic septic tanks. Susceptible to leaks and seepage through concrete cracks.
Heavy material prevents it from “floating”, unlike with plastic tanks. Vulnerable to cracks under extreme conditions.
May be long-lasting and extremely durable, depending on care and usage. Heavy weight makes it difficult to install.
Concrete tanks are approved for use in all states. More expensive to purchase and install.
Water-tight and corrosion-proof. Requires more frequent regular, periodic inspection and maintenance.
See also:  How Deep Should Soil Be Over A Concrete Septic Tank? (Solution)

Septic Tank Contractors in Concrete. Concrete has been the traditional building material for septic tanks for for years now, and with good reason: it is strong and durable. Concrete, for starters, is a long-lasting material. A concrete tank may endure for many decades if it is maintained and cared for appropriately. Concrete septic tanks are not only long-lasting, but they are also resistant to damage. Septic tanks constructed of concrete will withstand the rigors of heavy equipment or machinery used in their installation process.

  1. Finally, because concrete is a hefty material, you will not have to worry about your tank (or its contents) shifting within the earth after it has been properly installed.
  2. Concrete septic tanks become more prone to cracking and corrosion as they grow in age.
  3. When a low-quality concrete mix is utilized and/or a structure is constructed using steel support struts, the likelihood of problems increasing exponentially increases.
  4. Because concrete tanks are far heavier than steel tanks, they are significantly more expensive and hard to build, necessitating the use of specialized equipment and a higher level of experience.
  5. As an aside, after a concrete tank reaches the end of its useful life, its high weight results in the same laborious and expensive extraction process as before it was constructed.

Concrete vs. Plastic: A Closer Comparison

Concrete and plastic septic tanks are the two most popular tank kinds that many property owners evaluate when determining which type of septic tank to install, owing to the fact that they are the most prevalent materials used in septic tank construction. Even if there may be several differences between the two materials, the following are the ones that are most likely to be of importance to the majority of people and that you should take into consideration first: Cost. As with other elements of property care, including plumbing concerns, cost is always a factor to consider.

  1. Concrete storage tanks are often more expensive than their plastic counterparts in terms of overall cost.
  2. Meanwhile, the average price of plastic septic tanks is lower than these typical rates.
  3. The volume of wastewater that a septic tank can contain is referred to as its capacity.
  4. Naturally, lower-capacity tanks will have a greater tendency to fill with sludge (accumulated solid waste that settles at the bottom of the tank) more quickly, resulting in a greater need for pumping on a regular basis.
  5. Additionally, the effluent retention time of a small-sized septic tank is shorter.
  6. In the event that your tank’s effluent retention time is significantly reduced, the effluent in your tank will be pushed into the drainfield prematurely — before the liquid and solid wastes have been sufficiently separated to produce what is ideally a clear liquid substance.
  7. The durability of the material and the possibility of damage.
  8. Concrete septic tanks are more prone to breaking than their plastic equivalents, which is a disadvantage.
  9. Effluent can seep out of a septic tank through fractures and contaminate the soil, vegetation, and even water in the nearby area if not properly maintained.
  10. The difficulty is that you may not be aware of the seepage until it has progressed to more significant septic issues.

Driving cars or heavy machinery over the area where a plastic tank is buried is a possibility, and damp soil conditions make a plastic septic tank subject to “floating,” “shifting,” and “tilting.”

Your Third Option: Steel Septic Tanks

On the list of several septic tank types, there is a third alternative to consider: steel septic tanks. Steel septic tanks, on the other hand, are both the least durable and the least popular alternative, which is surprising. Steel septic tanks are intended to survive for a maximum of 20 to 25 years in the average environment. This is due to the fact that steel septic tanks are subject to rust corrosion, which might occur well before the 25-year lifespan is achieved. In a similar vein, the steel septic tank lid can rust through and disintegrate, creating a major physical threat to the property’s residents if it caves in under the weight of a person alone.

In addition, these covers may be replaced without having to replace the entire tank, which is a huge advantage.

Additionally, as with any other septic tank, you will need to pay particular attention to the baffles (entry and exit points) of steel septic tanks because they are the first parts of the tank to become corroded.

Just How Important is Septic Tank Design and Construction?

A septic tank must be well-designed and securely constructed in order to avoid cracking or corroding, which might result in groundwater pollution. Consider the design and construction of a septic tank when purchasing one. Determine the effluent levels that each type of tank can hold before making a purchase, as well as other design considerations such as tank inlet and outlet pipes, internal chambers and accompanying transfer pipes, vent pipes, and the design of access manholes. All of these considerations will play a role in the upkeep of the tank you ultimately choose.

  1. Consider the possibility that even the smallest amount of ground movement, particularly in the case of insufficient reinforcements on the tank’s actual placement, might be enough to cause fractures in your septic tank.
  2. Also keep in mind that a fully operating septic tank may be capable of holding up to a metric ton (or 1,000 kg) of liquid for every cubic meter of space.
  3. That is a significant amount of weight.
  4. When you include in your property’s location as well as other logistical considerations, things may quickly get more complicated.
  5. As a result, professional assistance from septic contractors is quite beneficial.
  6. In either case, your septic tank should be flexible enough to remain intact and formidable enough to maintain its integrity in the event of ground movement or drastic soil condition changes.
  7. It is critical that your septic tank has adequate capacity to handle the amount of inhabitants who will be using the system.

The amount of water that enters your septic tank is directly proportional to your way of life or how you use your home or business.

Having additional tenants means there will be more laundry and/or much more kitchenware that will need to be cleaned.

A septic tank should contain at least two chambers to function properly.

The first chamber should be approximately twice as large as the second chamber.

Alternatively, instead of having two separate tanks, you might use a single rectangular septic tank separated into two chambers.

The majority of the sludge (accumulated solid waste) is stored in the first tank or section, while the sewage is subjected to further treatment in the second tank or section to eliminate leftover solid waste.

The quality of your soil has a significant impact on this.

When it comes to this type of decision-making, it goes without saying that both concrete and plastic septic tanks are viable possibilities.

Strong, long-lasting, and far less expensive than concrete, and, should something go wrong down the road, you will not have to expend nearly insurmountable effort or pay a significant quantity of money to have it removed, repaired, or completely replaced.

The first instance is, of course, when concrete is required by local zoning regulations that apply to your property.

When you contact a septic firm, they should be able to come to your house or business site and assess the land and offer a professional suggestion on what type of tank you should build.

It appears to be a broad range, but this is due to the fact that the average lifespan is heavily influenced by factors such as how frequently the system is pumped, how frequently it is examined, and the use patterns of individuals who live on the property.

Having your septic system serviced and maintained on a regular basis is the most straightforward approach to extend its life.

Septic Tanks: Plastic or Cement?

If you’re like most people, you probably don’t pay much consideration to your septic tank on a daily basis — that is, unless something goes wrong with it. When anything goes wrong, it’s likely that you won’t be able to think on anything else until the problem is resolved. Purchasing a new tank may be a difficult and time-consuming endeavor. Septic tanks are available in two materials: concrete and plastic. At first look, it could appear that there isn’t much of a difference between the two. But there is.


The use of concrete as the primary building material for septic tanks has been around for a long time, and it’s not difficult to understand why. For starters, concrete is a long-lasting material. A concrete tank can endure for several decades if it is properly maintained. As a result, not only are they long-lasting, but they are also robust. Concrete tanks will withstand the rigors of heavy machinery during installation, and if you need to work on a portion of your yard later, you won’t have to worry about accidently punching a hole in the side of your tank because of the weight of the machinery.


Although they may be durable and strong, this does not imply that they will survive indefinitely. When a septic tank fails, the results are not pleasant. Concrete tanks become more prone to cracking and corrosion as they become older. It is possible that toxic wastes will leak as a result. The steel support struts in low-quality concrete are prone to corrosion, which leads to the development of a plethora of new concerns. Concrete tanks are also far heavier than steel tanks, resulting in a significantly more costly and difficult installation.

When it comes to life expectancy, that weight signifies a time-consuming (and expensive) removal process once the time has passed.


Plastic tanks have a lot to offer in terms of functionality. Plastic septic tanks, which are made of sturdy and high-tech polyethylene, are a considerably more lightweight alternative to concrete septic tanks. Because of the lower mass, installation is significantly less expensive because there is no need for large gear or equipment. Furthermore, because they are easier to carry, plastic tanks may be erected almost anywhere – including in more isolated regions. These characteristics make them an excellent alternative for areas such as holiday cottages and island-based residences.

Additionally, plastic tanks can be installed as deep as three feet underground, which helps to protect them from the outside elements and potential dangers that can arise.


Plastic tanks, despite the fact that they are less expensive and extremely dependable, are not without their drawbacks. The fact that they are so light makes it conceivable for a modern plastic tank to “float” in regions where the water table is higher, allowing them to rise up and move, resulting in the tank being unlevel. This can lead to structural and leakage issues in the future. Aside from that, even though polyethylene has been thoroughly tested and proven to be sturdy, it is not quite as durable as concrete in all scenarios, making it more susceptible to damage in extreme conditions.

However, when all of the possibilities are considered, it appears that plastic tanks, such as those offered by Go To Tanks, are the superior and more cost-effective option.

Should something go wrong, you won’t have to move heaven and earth to get them removed, repaired, or replaced because they are so lightweight.

We have tanks available in a variety of sizes ranging from 200 gallons to more than 3,500 gallons, all of which can be placed quickly and simply.

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