Types of Septic Tanks


If you’re like most people, you probably don’t know a whole lot about septic tanks. In fact, unless you’ve had to deal with one yourself, you may not even realize they exist! But if you’re a homeowner, it’s something you should be familiar with.

Septic tanks are an important part of any home’s septic system, and there are several different types to choose from.

So, if you’re in the market for a new septic tank, or just want to learn more about them, read on! I’ll introduce you to the 5 most common types of septic tanks, and tell you what each one is best suited for.

But before diving into that, it’s important to first understand what a septic tank is.

What Is A Septic Tank And What Does It Do?

A septic tank is a watertight chamber that receives sewage from your home through a pipe. The sewage then decomposes in the tank, and the liquids are absorbed into the ground through a leach field or other drainage system.

Now that you know the basics, let’s take a closer look at the different types of septic tanks.

The Different Types Of Septic Tanks

There are 5 different types of septic tanks and they include:

  • Concrete Septic Tanks
  • Fiberglass Septic Tanks
  • Plastic Septic Tanks
  • Aerobic Septic Tanks
  • Anaerobic Septic Tanks

The Most Common Types Of Septic Tanks

The most common types of septic tanks are the concrete, plastic, and fiberglass septic tanks. We’ll talk about these 3 first before moving on to the rest.

Concrete Septic Tanks

Concrete septic tanks are the most popular type of tank, and for good reason. They’re strong, durable, and can last for decades with proper care.

Concrete tanks are also very versatile, and can be used in a variety of different settings. However, they are the heaviest type of septic tank, so they may be very difficult and expensive to move and install.

If you’re considering a concrete septic tank, be sure to speak with a professional to make sure it’s the right choice for your home.

Pros Of Concrete Septic Tanks

  • They are strong and durable.
  • They’re versatile and can be used in many different settings.
  • They can last for decades.

Cons Of Concrete Septic Tanks

  • They are expensive and heavy.
  • They’re heavy and difficult to move or install.

Plastic Septic Tanks

Plastic septic tanks are made from a strong, durable plastic that is resistant to corrosion and UV light. The plastic is also recyclable, making plastic septic tanks an Eco-friendly option for sewage treatment.

Plastic septic tanks are a popular choice for many homeowners because they’re lightweight and easy to install.

They’re also less expensive than concrete tanks, but they don’t last as long. Plastic tanks typically need to be replaced every 15-20 years.

Pros Of Plastic Septic Tanks

  • They are lightweight and easy to install.
  • They’re less expensive than concrete tanks.
  • They are Eco-friendly.

Cons Of Plastic Septic Tanks

  • They don’t last as long as concrete tanks.
  • They may crack or break if not installed properly.

Fiberglass Septic Tanks

Fiberglass septic tanks are made using a combination of fiberglass and polyester resin. This combination makes them lighter, stronger, and more durable than many other types of septic tanks.

Fiberglass septic tanks have been around for a long time but have recently gained popularity because of their durability and affordability.

Fiberglass septic tanks are also quite easy to manufacture and use. This is because they’re made of lightweight material that can be molded into different shapes and sizes.

Pros Of Fiberglass Septic Tanks

  • They are more durable than plastic septic tanks.
  • They’re less likely to crack or break if dropped.
  • They are ideal for areas where the ground is unstable.

Cons Of Fiberglass Septic Tanks

  • They are heavier than plastic septic tanks.
  • They require more effort to move around and install in place.

The Other Types Of Septic Tanks

Aerobic Septic Tanks

Aerobic septic tanks are most common in urban areas and areas with limited space. Aerobic septic tanks are made of concrete, fiberglass, or plastic. They come in different sizes and shapes, depending on your needs.

Aerobic septic tanks have aerobic bacteria that live in the tank to break down solids. The bacteria thrive in oxygen, which is why aerobic septic systems need to be kept above ground and near an opening.

The cover of these types of septic tanks are essential for keeping the tank ventilated, but they also help keep the lid from being blown off by strong winds or heavy snowfall.

Pros Of Aerobic Septic Tanks

  • Aerobic septic tanks require less maintenance than anaerobic septic.
  • They are environmentally friendly.
  • They are affordable.

Cons Of Aerobic Septic Tanks

  • They require more maintenance than other types of septic tanks
  • Their maintenance cost is high.
  • They need regular repairs.

Anaerobic Septic Tanks

An anaerobic septic tank is a type of septic tank that is used in areas where there is limited space. It is a small tank that holds only enough water to be used by the household.

Anaerobic septic tanks are great for areas with limited space, but cannot be used in areas where there are many people living close together or in areas where there are many homes on the same street.

Pros Of Anaerobic Septic Tanks

  • They can handle far greater amounts of waste and sewage than conventional septic systems.
  • Anaerobic septic tanks are also very affordable and cost less than traditional ones.
  • They’re easy to install.
  • They do not require any separate expensive equipment e.g pumps

Cons Of Anaerobic Septic Tanks

  • Anaerobic septic tanks require more space as compared to an aerobic system
  • They cannot handle large amounts of waste at once.
  • They’re not suitable for areas with high water tables or flooding conditions (such as near rivers).

Now that you know the different types of septic tanks, the only thing that’s left is for you to take your pick. Analyze each of their advantages and disadvantages, and use them to select the best septic tank for your needs.

Still Don’t Know Which Septic Tank To Choose?

Are you unsure of which type of tank is best for your home or property? Do you have one in mind, but you’re a bit skeptical?

No problem!

A professional septic tank installer is just what you need. M. Riddle Excavating is just what you need.

With decades of experience in septic tank installations, our team of professionals are the solution to your septic tank problems.

Reach out to us today!