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Septic Tanks

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Septic tanks are underground wastewater treatment systems that are commonly used in areas where there is no centralized sewer system. They have been around for centuries, with the first known septic tank dating back to 1860 in France. Septic tanks have evolved over time, with various designs and materials used to construct them. One of the most recent innovations in septic tank design is the plastic septic tank. Read More…

Septic Tanks Septic tanks are on-site sewage treatment systems that are often used when a connection to sewage pipes cannot be made. They store substances that are utilized in sewage industrial processes.
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Leading Manufacturers

Orange, CA  |  877-768-6585

Roto Dynamics Inc., custom rotational molders serving rotomolding and plastic tank needs nationwide. We are dedicated to our customers manufacturing needs. Building customer relationships based on integrity and communication assists us in developing a competitive advantage within the industry.

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Roto Dynamics Inc. $$$

Mobile, AL  |  800-226-1134

With over 100 years combined experience, All Plastics and Fiberglass has the experience to handle all your plastic and fiberglass needs.

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All Plastics and Fiberglass, Inc. $$$

Fort Wayne, IN  |  800-228-7716

Specializing in fabricated plastic tanks such as water tanks, polypropylene tanks, polyethylene tanks and storage tanks, Park Plastic Products is capable of making your plastic tank in any size or dimension.

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Park Plastic Products $$$

Burgettstown, PA  |  724-947-5000

Our 50 years of experience have made us a leading supplier of custom plastic fabrications, including storage tanks, processing tanks and laboratory equipment. We provide a full line of plastic processing: CNC machining, welding, bending and fusion to custom build plastic tanks and components.

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Miller Plastic Products, Inc. $$$

Valley View, OH  |  330-274-2855

Founded in 1946, Aetna Plastics Corporation has been a leading distributor of plastic storage tanks, chemical tanks, polypropylene tanks, fiberglass-reinforced plastic tanks and many other products. We can either custom-fabricate tanks to your needs or you can choose from our standard model.

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Aetna Plastics Corporation $$$
placeholder image Roto Dynamics Inc. All Plastics and Fiberglass, Inc. Park Plastic Products Miller Plastic Products, Inc. Aetna Plastics Corporation

A plastic septic tank is a type of septic tank that is made of high-density polyethylene (HDPE) or other types of plastic. They were first introduced in the 1970s and have become increasingly popular due to their ease of installation, durability, and resistance to corrosion.

Plastic Septic Tanks

How do Plastic Septic Tanks Function?

Septic tanks function by separating solid waste from liquid waste. When wastewater enters the tank, it settles into three layers: solids sink to the bottom, a layer of scum floats to the top, and the liquid in the middle is discharged into the drain field. The bacteria in the tank break down the solids, turning them into sludge, which is then pumped out periodically. Plastic septic tanks function in the same way as traditional septic tanks. They have an inlet and outlet pipe and a baffle to separate the solid and liquid layers. However, they are lighter and easier to install than traditional concrete or steel septic tanks.

Plastic Septic Tank System

Are There Limitations to Plastic Septic Tanks?

One limitation of septic tanks in general is their capacity. They can only hold a certain amount of wastewater, and if they become too full, they can overflow or cause backups in the plumbing system. Additionally, septic tanks require regular maintenance, including pumping and inspection, to ensure that they are working properly. The specific limitations of plastic septic tanks include their vulnerability to damage from heavy equipment or shifting soil. They also have a lower resistance to heat than concrete or steel tanks and may be more prone to cracking or warping in extreme temperatures.

Are There Negatives Relating to Plastic Septic Tanks?

One negative associated with septic tanks in general is the potential for groundwater contamination. If a septic tank is not functioning properly or is located too close to a well or other water source, it can contaminate the groundwater with bacteria, viruses, and other harmful substances. Additionally, septic tanks can emit unpleasant odors if they are not properly maintained. The specific negative associated with plastic septic tanks is their vulnerability to UV radiation. If exposed to sunlight for extended periods, the plastic can degrade and become brittle, which can lead to leaks or other damage.

Are There Regulations for Plastic Septic Tanks?

In the United States, the use of plastic septic tanks is regulated by both federal and state authorities. These regulations ensure that plastic septic tanks are safe and effective for their intended use and that they comply with environmental and public health standards. Here are some of the regulations that apply to plastic septic tanks in the United States:

NSF/ANSI Standard 46: This is a national standard that sets performance and testing requirements for septic tanks and other onsite wastewater treatment systems. Plastic septic tanks that comply with this standard have been tested and certified to meet specific design and performance requirements.

State regulations: Each state has its own regulations regarding the use of plastic septic tanks. For example, some states may require that plastic septic tanks be installed only in certain soil types, while others may require specific certifications or approvals before installation.

Environmental Protection Agency (EPA) regulations: The EPA sets federal regulations for septic systems, including plastic septic tanks. These regulations include standards for system design, construction, operation, and maintenance, as well as requirements for groundwater protection and public health.

Local regulations: Local authorities such as county or city governments may also have regulations regarding the use of plastic septic tanks. These regulations may include requirements for permits, inspections, and maintenance.

Overall, it is important to check with local and state authorities before installing a plastic septic tank to ensure compliance with all applicable regulations. In addition, it is recommended to choose a tank that has been tested and certified to meet the appropriate standards, such as NSF/ANSI Standard 46. Proper installation and maintenance of the tank can also help ensure compliance with regulations and protect public health and the environment.

What Are the Benefits of Plastic Septic Tanks?

Cost-effective: Septic tanks are relatively inexpensive to install and maintain compared to centralized sewer systems. Plastic septic tanks are typically less expensive than concrete and fiberglass tanks.

Easy installation: Septic tanks are easy to install and require minimal excavation.

Environmentally friendly: Septic tanks treat wastewater on-site, which means that they reduce the amount of wastewater that is discharged into the environment.

Low maintenance: Septic tanks require minimal maintenance, typically needing to be pumped out every three to five years.

Flexibility: Septic tanks can be customized to meet the needs of specific households and can be adapted to different soil types.

Lightweight: Plastic septic tanks are lighter in weight compared to concrete and fiberglass tanks, which makes them easier to transport and install.

Durable: Plastic septic tanks are resistant to corrosion and rust, making them more durable and longer-lasting than other materials.

Easy to clean: Plastic septic tanks are smooth and easy to clean, reducing the risk of buildup and clogs.

Septic Tank Being Pumped

Applications of Plastic Septic Tanks

Residential use: Plastic septic tanks are commonly used for residential purposes due to their durability, cost-effectiveness, and ease of installation.

Commercial use: Plastic septic tanks are also used in commercial settings, such as restaurants and hotels, due to their lightweight and easy installation.

Temporary use: Plastic septic tanks can be used as a temporary solution for construction sites, festivals, and other events due to their portability and ease of installation.

Portable Plastic Septic Tank

Choosing the Proper Plastic Septic Tank Supplier

To ensure you have the most positive outcome when purchasing a plastic septic tank from a plastic septic tank supplier, it is important to compare several companies using our directory of plastic septic tank suppliers. Each plastic septic tank supplier has a business profile page highlighting their areas of experience and capabilities, along with a contact form to directly communicate with the supplier for more information or request a quote. Review each plastic septic tank business website using our proprietary website previewer to quickly learn what each plastic septic tank company specializes in. Then, use our simple RFQ form to communicate with multiple plastic septic tank companies with the same form.

Septic Tank Informational Video


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