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Septic Tank Type - 251 to 500 Gallons

Septic systems are a critical component of decentralized wastewater management in America, particularly in rural and semi-urban areas. Designed for efficiency and durability, septic tanks provide a sustainable solution for households and industries where access to public sewers is limited. The evolution of septic technologies—from traditional two-chamber tanks to advanced systems like EcoRock—reflects the industry's commitment to environmental stewardship and regulatory compliance. ...


Our range of septic tanks provides reliable solutions for managing wastewater, designed to meet the highest standards of durability and regulatory compliance. Each type of septic tank is tailored to specific needs, offering versatility, capacity, and technical robustness. Selecting the right sewer tank depends on your specific application, soil conditions, and state regulations.

Single Compartment Septic Tanks

Single compartment septic tanks have one chamber that separates solid waste from liquid effluent by natural settling. Solid waste forms a sludge layer at the tank's bottom, while lighter substances rise to the top, forming what is called a “scum layer”. The liquid effluent between these layers flows into the drain field for further filtration in the soil. Single compartment septic tanks are a straightforward solution for basic onsite wastewater treatment, providing reliable service at a lower cost for properties with moderate waste loads.

Dual Compartment Septic Tanks

Dual compartment septic tanks, or two-chamber tanks, enhance wastewater treatment by separating solids in two stages. Wastewater flows into the first chamber, where solids settle, and then into the second chamber, where further separation occurs. This advanced filtration protects the drain field by reducing solids in the effluent. Dual compartment septic tanks provide superior onsite wastewater treatment, making them ideal for larger properties or areas with rigorous environmental compliance needs.

Septic Pump Tank

Septic pump tanks are designed for properties where wastewater cannot naturally flow to the drain field due to elevation or site-specific constraints. These septic tanks house a pump that moves effluent from the septic tank to the drain field, ensuring proper dispersal and preventing backflow. Septic pump tanks provide an ideal solution for properties requiring assisted wastewater movement, allowing effective septic system performance in challenging site conditions.

Multi-Use Underground Septic Tanks

Multi-use underground septic tanks provide unparalleled versatility and durability, making them an ideal choice for diverse applications. Whether you're managing residential wastewater, storing potable water, or addressing unique project needs, these underground septic tanks are designed to perform efficiently in any environment. Multi-use underground septic tanks excel in areas where delivery of special backfill mixtures or water is impractical. Choose the Norwesco Bruiser or other underground waste holding tank models to ensure long-lasting performance and compliance with local regulations.

Aboveground Septic Tanks

Aboveground septic tanks, also known as waste holding tanks, provide practical and durable solutions for temporary or permanent onsite wastewater storage. Designed for versatility and ease of use, these aboveground tanks are ideal for applications where traditional septic systems aren't feasible.

Aboveground waste holding tanks are portable, low-profile, and designed to withstand environmental exposure, making them perfect for temporary installations or remote locations.

Septic Tank Regulations By State

Septic systems are heavily regulated in the USA to ensure proper wastewater management, environmental protection, public health, and groundwater safety. The type of septic tank you'll need—whether a single-compartment septic or dual-compartment system—is primarily determined by local regulations. These regulations take into account factors like wastewater load, water table level, soil composition, and property size to ensure optimal performance and environmental protection.

In areas with high water tables or poor soil absorption, above-ground septic tanks may be mandated. For larger systems, multi-use underground tanks might be recommended to meet specific design requirements. Each state has its own regulatory framework, often managed by local health departments or environmental agencies, which set standards for septic tank materials, size, placement, and ongoing maintenance. Always consult with your local health department or a licensed septic professional to understand the exact requirements for your property before making any decisions.

Applications

Septic tanks are crucial in regions without central sewer access, ensuring effective onsite wastewater treatment while safeguarding groundwater from contamination. Advanced systems, such as EcoRock units, use biofiltration technology to achieve high treatment efficiency without the need for electrical components, making them an eco-friendly and low-maintenance solution for both residential and commercial applications.

Choosing the Right Septic Tank for Your Property with Tank Depot

Septic systems represent a complex intersection of environmental science, engineering, and regulatory compliance. The materials and technologies used—whether polyethylene septic tanks for enhanced corrosion resistance or advanced treatment units for nitrogen removal—are pivotal in maintaining system efficiency and protecting groundwater from contamination. By incorporating aerobic treatment, biofiltration, and effluent monitoring technologies, modern septic solutions not only meet but often exceed local environmental standards.

Understanding the intricate details of each component—from the pumps and chambers to the drain fields—is key to designing and maintaining an optimal septic system that will perform reliably for decades. Our septic tanks are compliant with state-specific requirements, ensuring optimal performance and long-term reliability. Filter by color, size, manufacturer, specific gravity, and product class to find the septic tank that suits your needs. For additional information about septic system installation or state certification requirements, please reach out to one of our reps for guided consultation.

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15 Items

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Capacity Name Diameter Length Width Height SKU Price
Buy 300 Gallon Plastic Underground Septic Pump Tank Not Plumbed by Snyder Industries of Black color for only $788.00 300 Gallons Buy 300 Gallon Plastic Underground Septic Pump Tank Not Plumbed by Snyder Industries of Black color for only $788.00 Snyder Industries 300 Gallon Plastic Underground Septic Pump Tank Not Plumbed 48.5 48.5 48.5 49.5 SII-5260000W94201 $788.00
Buy 300 Gallon Deep Bury Septic Pump Tank by Norwesco for only $1,225.00 300 Gallons Buy 300 Gallon Deep Bury Septic Pump Tank by Norwesco for only $1,225.00 Norwesco 300 Gallon Deep Bury Septic Pump Tank 51 51 51 51 N-44370 $1,225.00
Buy 300 Gallon Plastic Above Ground Septic Job Shack Holding Tank by Ace Roto-Mold of Black color for only $738.00 300 Gallons Buy 300 Gallon Plastic Above Ground Septic Job Shack Holding Tank by Ace Roto-Mold of Black color for only $738.00 Ace Roto-Mold 300 Gallon Plastic Above Ground Septic Job Shack Holding Tank 95 56 16 A-LP0300-HT-BLK $738.00
Buy Florida Only 300 Gallon Plastic Septic Pump Tank by Norwesco of Green color for only $1,032.00 300 Gallons Buy Florida Only 300 Gallon Plastic Septic Pump Tank by Norwesco of Green color for only $1,032.00 Norwesco Florida Only 300 Gallon Plastic Septic Pump Tank 51 51 51 50 N-44789 $1,032.00
Buy 300 Gallon Above Ground Septic Job Shack Holding Tank by Norwesco of Black color for only $931.99 300 Gallons Buy 300 Gallon Above Ground Septic Job Shack Holding Tank by Norwesco of Black color for only $931.99 Norwesco 300 Gallon Above Ground Septic Job Shack Holding Tank 95 56 16 N-44234 $931.99
Buy 300 Gallon Plastic Septic Pump Tank Preplumbed by Snyder Industries of Black color for only $1,020.00 300 Gallons Buy 300 Gallon Plastic Septic Pump Tank Preplumbed by Snyder Industries of Black color for only $1,020.00 Snyder Industries 300 Gallon Plastic Septic Pump Tank Preplumbed 48.5 48.5 48.5 53 SII-ST11S $1,020.00
Buy 300 Gallon Septic Pump Tank by Norwesco of Black color for only $767.00 300 Gallons Buy 300 Gallon Septic Pump Tank by Norwesco of Black color for only $767.00 Norwesco 300 Gallon Septic Pump Tank 54 54 54 54 N-41319 $767.00
Buy 350 Gallon Plastic Above Ground Septic Job Shack Holding Tank by Quadel for only $1,010.00 350 Gallons Buy 350 Gallon Plastic Above Ground Septic Job Shack Holding Tank by Quadel for only $1,010.00 Quadel 350 Gallon Plastic Above Ground Septic Job Shack Holding Tank 88 44 25 QI-1661 $1,010.00
Buy 500 Gallon Plastic One Compartment Septic Tank - IAPMO Certified by Norwesco of Yellow color for only $1,111.00 500 Gallons Buy 500 Gallon Plastic One Compartment Septic Tank - IAPMO Certified by Norwesco of Yellow color for only $1,111.00 Norwesco 500 Gallon Plastic One Compartment Septic Tank - IAPMO Certified 101 51 47 N-41320 $1,111.00
Buy 500 Gallon One Compartment Septic Tank with Low Profile Design by Norwesco of Green color for only $1,060.00 500 Gallons Buy 500 Gallon One Compartment Septic Tank with Low Profile Design by Norwesco of Green color for only $1,060.00 Norwesco 500 Gallon One Compartment Septic Tank with Low Profile Design 97 48 50 N-43522 $1,060.00
Buy 500 Gallon Plastic Septic Pump Tank Preplumbed by Snyder Industries of Black color for only $1,120.00 500 Gallons Buy 500 Gallon Plastic Septic Pump Tank Preplumbed by Snyder Industries of Black color for only $1,120.00 Snyder Industries 500 Gallon Plastic Septic Pump Tank Preplumbed 60 60 60 63 SII-ST21S $1,120.00
Buy 500 Gallon Plastic Septic Pump Tank by Snyder Industries of Black color for only $862.00 500 Gallons Buy 500 Gallon Plastic Septic Pump Tank by Snyder Industries of Black color for only $862.00 Snyder Industries 500 Gallon Plastic Septic Pump Tank 60 60 60 63 SII-PT2S $862.00
Buy 500 Gallon Plastic Septic Pump Tank by Norwesco of Black color for only $1,021.00 500 Gallons Buy 500 Gallon Plastic Septic Pump Tank by Norwesco of Black color for only $1,021.00 Norwesco 500 Gallon Plastic Septic Pump Tank 64 64 64 67 N-40785 $1,021.00
Buy 500 Gallon Job Shack Holding Tank with Low Profile Design in Black by Norwesco of Black color for only $1,165.00 500 Gallons Buy 500 Gallon Job Shack Holding Tank with Low Profile Design in Black by Norwesco of Black color for only $1,165.00 Norwesco 500 Gallon Job Shack Holding Tank with Low Profile Design in Black 130 52 22 N-44863 $1,165.00
Buy 500 Gallon Plastic Preplumbed One Compartment Septic Tank with Low Profile Design by Snyder Industries of Green color for only $1,352.00 500 Gallons Buy 500 Gallon Plastic Preplumbed One Compartment Septic Tank with Low Profile Design by Snyder Industries of Green color for only $1,352.00 Snyder Industries 500 Gallon Plastic Preplumbed One Compartment Septic Tank with Low Profile Design 97 48 42 SII-45802 $1,352.00
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Gallon Capacity
  1. 101 to 250 Gallons 4 items
  2. 251 to 500 Gallons 15 items
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  1. Ace Roto-Mold 1 item
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  3. Quadel 1 item
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  1. Job Shack Holding Tanks 4 items
  2. One Compartment Tanks 3 items
  3. Pump Tanks 8 items
Specific Gravity
  1. 1.5 (Max 12.52 lbs/gal) 1 item
  2. 1.7 (Max 14.19 lbs/gal) 1 item
  3. 1.9 (Max 15.87 lbs/gal) 1 item
  4. 1.7 1 item
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  1. High Density Polyethylene 1 item
  2. Polyethylene 14 items
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  1. Septic Tanks 15 items
Septic Approval by State
  1. Alabama 3 items
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  47. Washington 3 items
  48. West Virginia 3 items
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  50. Wyoming 3 items
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