What Is Best For Septic Tank Risers, Concrete or Plastic?

Septic tanks are a crucial part of many residential properties, especially those located in rural or suburban areas not connected to a municipal sewer system. One essential component in the design of these systems is the septic tank riser, which facilitates access for maintenance and inspection. When it comes to choosing a riser, property owners often debate between two primary materials: concrete and plastic. Each option has its advantages and drawbacks, which we’ll explore in this article to help you make an informed decision.

Septic Tank Risers

Septic tank risers serve as an access point from the tank’s lid to ground level, allowing for easy pumping and inspection. Without a riser, accessing a septic tank involves digging up the area around the tank lid, which can be time-consuming and costly. Risers simplify this process, making regular maintenance more straightforward and cost-effective.

The two most common types of septic tank risers are concrete septic tank risers and plastic septic tank risers. While both types achieve the same basic function, they differ in material, durability, cost, and other characteristics. Let’s dive into the specifics of each type.

Concrete Septic Tank Risers: The Traditional Choice

Concrete septic tank risers have been a standard choice for years, particularly in older septic systems. They are often valued for their strength and durability, particularly in regions where soil pressure is a concern.

Advantages of Concrete Septic Tank Risers

1. Durability and Longevity
   Concrete is known for its exceptional durability and longevity. A well-maintained concrete riser can last for decades without showing signs of significant wear or degradation. Concrete risers are highly resistant to external forces, including soil pressure and underground movements.
2. Security
   Concrete risers are generally more secure than their plastic counterparts. Due to their weight, they’re less likely to shift or become dislodged over time. This is particularly useful in areas prone to heavy rainfall or flooding, as the weight of the concrete helps keep the riser stable.
3. Resistance to Chemical Reactions
   Concrete risers are less likely to be affected by chemical reactions within the soil or septic tank. Unlike some plastics, which can react with chemicals and degrade over time, concrete maintains its structural integrity and doesn’t react negatively with its surroundings.

Disadvantages of Concrete Septic Tank Risers

1. Heavy and Difficult to Install
   The weight of concrete can make installation challenging and labor-intensive. Often, installing a concrete septic tank riser requires special equipment, such as a crane or other lifting mechanisms. This can increase both the cost and time required for installation.
2. Susceptibility to Cracking
   While concrete is highly durable, it can crack over time, especially if exposed to extreme temperature changes or if the ground shifts significantly. Cracks can allow water to seep into the septic tank, which may impact the system’s efficiency and increase the risk of leaks.
3. Limited Aesthetic Options
   Concrete septic tank risers typically lack customization options, making them harder to blend seamlessly with the surrounding landscape. If aesthetics are a priority, concrete risers may not be the ideal choice.

Best Use Cases for Concrete Septic Tank Risers

Concrete risers are a solid choice for larger properties and areas where soil pressure and groundwater concerns are significant. They’re also well-suited for regions with frequent freezing and thawing, as they are less likely to degrade in these conditions compared to plastic risers.

Plastic Septic Tank Risers: The Modern Alternative

Plastic septic tank risers have gained popularity in recent years due to their lighter weight and ease of installation. They offer several benefits that make them a practical choice for many homeowners, particularly those looking for a more flexible and cost-effective solution.

Advantages of Plastic Septic Tank Risers

1. Lightweight and Easy Installation
   One of the most appealing aspects of plastic septic tank risers is their lightweight design. They can be installed without the need for heavy machinery or specialized equipment, making the installation process quicker, easier, and often less costly.
2. Corrosion and Rust Resistance
   Plastic risers are resistant to corrosion and rust, making them ideal for regions with high moisture levels or acidic soils. Unlike concrete, which may degrade when exposed to certain environmental conditions, plastic risers remain resilient and free of damage.
3. Flexibility and Customization
   Plastic risers come in a variety of sizes, shapes, and colors, allowing homeowners to customize them according to their preferences. This flexibility makes it easier to blend the riser with the surrounding landscape, achieving a more aesthetically pleasing appearance.
4. Lower Overall Cost
   Due to their lightweight nature and ease of installation, plastic septic tank risers are generally more affordable than concrete risers. This cost efficiency can be an essential factor for homeowners looking to maintain a budget.

Disadvantages of Plastic Septic Tank Risers

1. Less Durable Than Concrete
   Although plastic risers are resistant to rust and corrosion, they may not be as durable as concrete in the long term. Plastic is susceptible to cracking under extreme temperature fluctuations and can become brittle with prolonged exposure to sunlight.
2. Prone to Shifting
   Plastic risers are significantly lighter than concrete risers, which makes them more prone to shifting or being displaced by environmental factors, such as soil movement or heavy rainfall. In areas where soil stability is a concern, plastic risers may not be the best choice.
3. Vulnerability to Damage from Machinery
   Plastic risers can be damaged more easily by lawnmowers, heavy equipment, or other machinery. Concrete risers are much more resistant to external impacts, making them a better choice for areas with frequent landscaping or construction activities.

Best Use Cases for Plastic Septic Tank Risers

Plastic septic tank risers are ideal for properties in stable soil conditions and moderate climates where extreme temperatures or heavy soil pressure are not major concerns. They’re also a great choice for homeowners who prioritize ease of installation, cost savings, and customization.

Factors to Consider When Choosing a Septic Tank Riser

Soil Conditions

In areas with stable soil, a plastic septic tank riser may be sufficient, as it can withstand moderate pressures. However, in regions with shifting or unstable soil, a concrete septic tank riser provides added security.

Climate

Climate plays a crucial role in the longevity and maintenance requirements of septic tank risers. Concrete risers perform better in colder climates due to their ability to withstand freezing and thawing cycles, while plastic may degrade faster in extreme cold or direct sunlight.

Budget

Budget considerations are also essential. Plastic septic tank risers are generally more cost-effective, making them a popular choice for homeowners on a budget. Concrete septic tank risers tend to have a higher upfront cost, although their long-term durability may offer value over time.

Maintenance Requirements

Both types of risers require regular inspections, but plastic risers may need more frequent maintenance due to their susceptibility to cracking and shifting. Concrete risers, while more durable, should also be checked for cracks or signs of wear over time.

Which Is the Better Choice?

The choice between concrete septic tank risers and plastic septic tank risers ultimately depends on your specific needs, environment, and budget. Concrete risers are ideal for homeowners looking for durability, security, and low maintenance, especially in areas with challenging soil conditions or extreme weather. On the other hand, plastic risers offer a cost-effective and customizable solution for those in stable environments, with the added benefit of easy installation.

Each material has its own advantages and limitations, and understanding these can help you make a decision that best suits your property and maintenance needs. In either case, investing in the right riser will save you time, money, and effort in the long run, ensuring your septic system remains efficient and functional for years to come.

Need a Septic Tank & Grease Trap Cleaning Company in Farmington, NH?

B.H. Cameron Septic Services LLC has been proudly serving the surrounding counties since 2005, providing efficient, cost-effective solutions to meet your residential or commercial septic system needs. We will help you develop your initial design and secure permits for installation or provide conversion to the city sewer system. We offer peace of mind with routine maintenance service after the job is done. When you contact B.H. Cameron Septic Services LLC, you will be greeted by one of our customer service staff. An experienced service technician will work directly with you to determine how we can help with your septic service or maintenance. Call us today!

Categorised in: Septic Tank Risers

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