Opened unsecured sewer manhole of rural septic tank with green plastic cover

Plastic vs. Concrete: Which Is Best for Your Septic Tank

The most common argument when selecting a septic tank is between concrete and plastic. Both have advantages and disadvantages, which could affect the efficiency and life of your chosen septic system. Your best option boils down to weighing such factors as cost, durability, and maintenance.

Durability and Longevity

The ability of a tank to stand the test of time is crucial. Concrete septic tanks are well known to have very long life spans. They do not crack with heavy load carriage, making them suitable for big households or properties with a lot of usage.

Plastic tanks are relatively lightweight and resistant to corrosion. They will stand up quite well to many applications but may face distortion from extreme pressure and shifting soil. You may find it in your best interests to go with a concrete tank if your property endures heavy vehicle traffic or your property is relatively unstable.

Cost Considerations for Installation and Maintenance

Decision-making may be completely dominated by the initial investment cost. Since they are lighter, plastic tanks are usually cheaper to buy and install. This could save a lot of money and time.

Generally speaking, tanks made of concrete have higher up-front costs because of their weight and the complications involved in installing them. However, you may be able to save more over time as they generally need less maintenance. Consider how much you want to invest up-front versus what you will spend on repairs later.

Maintenance and Environmental Impact

Both materials come with specific maintenance requirements. Concrete tanks are permanent but may crack after years of performance. This can cause leakage unless they’re surveyed regularly.

Plastic tanks will not shatter as easily but they are not indestructible either. In some cases, they will shift. Over time, this can result in misalignment. Being lighter, they also tend to float if the water level rises.

Environmentally speaking, concrete tanks have a much larger carbon footprint due to the manufacturing process. Plastic tanks have less impact during production but could add to long-term waste if not recycled properly.

Choosing the Right Septic Tank for Your Property

The right tank for your property depends on your priorities. If longevity and acceptance of higher up-front costs are what matter the most, concrete could prove to be a better choice. In the case of prioritizing cost and ease concerning installation, plastic might be the way to go.

If you are in Houston, TX and seek professional insight regarding septic tank services, give us a call today at Brown Aerobic Service Company for consultation and service.