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Two Compartment Septic Tanks - Minnesota - Oklahoma - Washington

Advanced Wastewater Treatment for Modern Homes
When your property demands higher wastewater capacity and better filtration, two compartment septic tanks are the answer. With two chambers instead of one, these tanks provide superior separation and treatment of solids, resulting in cleaner effluent for your drain field. Wastewater flows through the first chamber for primary settling, then into the second chamber for enhanced filtration. This two process ensures high-quality treatment and protects your drain field from clogs and overloading....

Tank Depot offers a range of two compartment tanks from industry leaders like Snyder Industries, Norwesco, and Chemtainer, with capacities ranging from 750 to 1500 gallons. The two chamber septic tanks are built for durability, efficiency, and compliance with strict environmental regulations.

Why Choose Two Compartment Septic Tanks?

Advanced Filtration Technology
Advanced Filtration Technology

Two chambers work in tandem to separate and treat solids, ensuring only high-quality effluent reaches the drain field.

Superior Wastewater Treatment
Superior Wastewater Treatment

By reducing solids in the effluent, these tanks extend the lifespan of your drain field and prevent costly maintenance issues.

Eco-Friendly Design
Eco-Friendly Design

Minimize environmental impact with septic tanks that meet IAPMO/ANSI Z1000-2013 and CSA B66-2016 standards, ensuring groundwater protection and regulatory compliance.

Durable Construction
Durable Construction

Made from rugged polyethylene, these tanks resist impact, corrosion, and UV damage. Features like seamless, rotationally molded designs ensure leak-proof performance.

Built for Small or Heavy Waste Loads
Built for Small or Heavy Waste Loads

Perfect for larger households or commercial properties that generate significant wastewater.

Easy Maintenance and Access
Easy Maintenance and Access

Most tanks feature two manways for simple cleaning and inspection. Optional risers can provide convenient ground-level access.

Ideal Applications for Two Compartment Septic Tanks

Residential Properties
Residential Properties

Designed for homes with 2 to 4 bedrooms.

Properties with Heavy Waste Loads
Properties with Heavy Waste Loads

Weatherproof and chemical-resistant materials ensure durability in harsh conditions.

Eco-Sensitive Locations
Eco-Sensitive Locations

Required in many areas with strict environmental regulations, these tanks ensure compliance and reduce environmental impact.

Key Features of Tank Depot’s Two Compartment Tanks

  • Capacity Options: Ranges from 750 to 1500 gallons to suit various property sizes.
  • Manhole Covers: Tanks come with two 20” or 24” manways for easy access.
  • Seamless Design: Rotational molding ensures a watertight and leak-proof structure.
  • Enhanced Strength: Many models feature thicker walls (up to 0.375") for greater durability.
  • Inlet & Outlet Connections: Equipped with Schedule 40 plumbing (4" Tees and Gaskets) for easy installation.
  • Versatility: Ideal for both residential and commercial applications.

Two Compartment Tank Selection

  • 2 bedrooms - 750 to 1000 gallon tank
  • 3 bedrooms - 1000 to 1250 gallon tank
  • 4 bedrooms - 1500 gallon tank

Maintenance Tips for Two Compartment Tanks

  • Schedule Regular Pumping: Typically every 3–5 years, depending on tank size and usage.
  • Inspect Connections and Components: Check manholes, inlets, outlets, and risers for damage or wear.
  • Protect Your Drain Field: Avoid overloading the system or planting deep-rooted vegetation near the field.

Find Your Two Chamber Septic System Today

Upgrade your wastewater management system with a two chamber septic tank built for efficiency and durability. Whether you need a 750-gallon tank for a smaller property or a 1500-gallon tank for larger residential or commercial use, we’ve got you covered. Explore our septic tank installation and replacement services in Texas. Contact us today for expert guidance on selecting the perfect tank for your property.
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DISCLAIMER: Here at Tank Depot we work hard to stay up to date on the latest rules and regulations for each state, however, please confirm with your local septic installer or sanitarian that the products you select are approved by your state and county for septic use in your area.

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17 Items

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Capacity Name Diameter Length Width Height SKU Price
Buy 750 Gallon Two Compartment Septic Tank with Preplumbed and Low Profile Design - IAPMO Certified by Norwesco of Green color for only $2,020.00 750 Gallons Buy 750 Gallon Two Compartment Septic Tank with Preplumbed and Low Profile Design - IAPMO Certified by Norwesco of Green color for only $2,020.00 Norwesco 750 Gallon Two Compartment Septic Tank with Preplumbed and Low Profile Design - IAPMO Certified 92 60 51 N-43521 $1,859.04$2,020.00
Buy 750 Gallon Plastic Two Compartment Septic Tank with Loose Plumbing and Low Profile Design - IAPMO Certified by Norwesco of Green color for only $1,799.99 750 Gallons Buy 750 Gallon Plastic Two Compartment Septic Tank with Loose Plumbing and Low Profile Design - IAPMO Certified by Norwesco of Green color for only $1,799.99 Norwesco 750 Gallon Plastic Two Compartment Septic Tank with Loose Plumbing and Low Profile Design - IAPMO Certified 92 60 51 N-43499 $1,799.99
Buy 1000 Gallon Plastic Preplumbed Two Compartment Septic Tank with Low Profile Design by Norwesco of Green color for only $2,165.57 1000 Gallons Buy 1000 Gallon Plastic Preplumbed Two Compartment Septic Tank with Low Profile Design by Norwesco of Green color for only $2,165.57 Norwesco 1000 Gallon Plastic Preplumbed Two Compartment Septic Tank with Low Profile Design 127 60 51 N-42406 $2,147.70$2,165.57
Buy 1000 Gallon Plastic Two Compartment Septic Tank with Loose Plumbing and Low Profile Design - IAPMO Certified by Norwesco of Green color for only $1,949.99 1000 Gallons Buy 1000 Gallon Plastic Two Compartment Septic Tank with Loose Plumbing and Low Profile Design - IAPMO Certified by Norwesco of Green color for only $1,949.99 Norwesco 1000 Gallon Plastic Two Compartment Septic Tank with Loose Plumbing and Low Profile Design - IAPMO Certified 127 60 51 N-43517 $1,930.94$1,949.99
Buy 1000 Gallon Plastic Two Compartment Septic Tank - IAPMO Certified by Norwesco of Yellow color for only $2,099.99 1000 Gallons Buy 1000 Gallon Plastic Two Compartment Septic Tank - IAPMO Certified by Norwesco of Yellow color for only $2,099.99 Norwesco 1000 Gallon Plastic Two Compartment Septic Tank - IAPMO Certified 102 60 63 N-41720 $2,099.99
Buy 1000 Gallon Two Compartment Septic Tank with Two Manholes - Approved in Canada - IAPMO Certified by Norwesco of Yellow color for only $2,092.00 1000 Gallons Buy 1000 Gallon Two Compartment Septic Tank with Two Manholes - Approved in Canada - IAPMO Certified by Norwesco of Yellow color for only $2,092.00 Norwesco 1000 Gallon Two Compartment Septic Tank with Two Manholes - Approved in Canada - IAPMO Certified 102 60 63 N-41724 $2,092.00
Buy 1000 Gallon Plastic Two Compartment Septic Tank with Two Manhole Covers by Norwesco of Yellow color for only $2,000.00 1000 Gallons Buy 1000 Gallon Plastic Two Compartment Septic Tank with Two Manhole Covers by Norwesco of Yellow color for only $2,000.00 Norwesco 1000 Gallon Plastic Two Compartment Septic Tank with Two Manhole Covers 102 60 63 N-44474 $2,000.00
Buy 1250 Gallon Plastic Two Compartment Septic Tank with Adapters and 2 Manhole Covers - IAPMO Certified by Norwesco of Yellow color for only $2,399.99 1250 Gallons Buy 1250 Gallon Plastic Two Compartment Septic Tank with Adapters and 2 Manhole Covers - IAPMO Certified by Norwesco of Yellow color for only $2,399.99 Norwesco 1250 Gallon Plastic Two Compartment Septic Tank with Adapters and 2 Manhole Covers - IAPMO Certified 116 55 70 N-41743 $2,399.99
Buy 1250 Gallon Plastic Two Compartment Septic Tank - IAPMO Certified by Norwesco of Yellow color for only $2,554.00 1250 Gallons Buy 1250 Gallon Plastic Two Compartment Septic Tank - IAPMO Certified by Norwesco of Yellow color for only $2,554.00 Norwesco 1250 Gallon Plastic Two Compartment Septic Tank - IAPMO Certified 116 55 70 N-41746 $2,554.00
Buy 1250 Gallon Plastic Preplumbed Two Compartment Septic Tank with Low Profile Design - IAPMO Certified by Norwesco of Green color for only $2,673.00 1250 Gallons Buy 1250 Gallon Plastic Preplumbed Two Compartment Septic Tank with Low Profile Design - IAPMO Certified by Norwesco of Green color for only $2,673.00 Norwesco 1250 Gallon Plastic Preplumbed Two Compartment Septic Tank with Low Profile Design - IAPMO Certified 157 60 51 N-43501 $2,673.00
Buy 1250 Gallon Plastic Two Compartment Septic Tank with Loose Plumbing and Low Profile Design - IAPMO Certified by Norwesco of Green color for only $2,499.99 1250 Gallons Buy 1250 Gallon Plastic Two Compartment Septic Tank with Loose Plumbing and Low Profile Design - IAPMO Certified by Norwesco of Green color for only $2,499.99 Norwesco 1250 Gallon Plastic Two Compartment Septic Tank with Loose Plumbing and Low Profile Design - IAPMO Certified 157 60 51 N-43503 $2,499.99
Buy 1500 Gallon Two Compartment Septic Tank with Two Manholes - Approved in Canada - IAPMO Certified by Norwesco of Yellow color for only $3,118.00 1500 Gallons Buy 1500 Gallon Two Compartment Septic Tank with Two Manholes - Approved in Canada - IAPMO Certified by Norwesco of Yellow color for only $3,118.00 Norwesco 1500 Gallon Two Compartment Septic Tank with Two Manholes - Approved in Canada - IAPMO Certified 135 55 70 N-41764 $3,118.00
Buy 1500 Gallon Plastic Two Compartment Septic Tank - IAPMO Certified by Norwesco of Yellow color for only $2,949.99 1500 Gallons Buy 1500 Gallon Plastic Two Compartment Septic Tank - IAPMO Certified by Norwesco of Yellow color for only $2,949.99 Norwesco 1500 Gallon Plastic Two Compartment Septic Tank - IAPMO Certified 135 55 70 N-41760 $2,949.99
Buy 1500 Gallon Plastic Preplumbed Two Compartment Septic Tank with Low Profile Design by Norwesco of Green color for only $3,078.00 1500 Gallons Buy 1500 Gallon Plastic Preplumbed Two Compartment Septic Tank with Low Profile Design by Norwesco of Green color for only $3,078.00 Norwesco 1500 Gallon Plastic Preplumbed Two Compartment Septic Tank with Low Profile Design 157 69 51 N-43502 $2,924.31$3,078.00
Buy 1500 Gallon Plastic Two Compartment Septic Tank with Gaskets, Tees, and 2 Manhole Covers - IAPMO Certified by Norwesco of Yellow color for only $2,799.99 1500 Gallons Buy 1500 Gallon Plastic Two Compartment Septic Tank with Gaskets, Tees, and 2 Manhole Covers - IAPMO Certified by Norwesco of Yellow color for only $2,799.99 Norwesco 1500 Gallon Plastic Two Compartment Septic Tank with Gaskets, Tees, and 2 Manhole Covers - IAPMO Certified 135 55 70 N-44480 $2,799.99
Buy 1500 Gallon Two Compartment Septic Tank with Loose Plumbing and Low Profile Design - IAPMO Certified by Norwesco of Green color for only $2,899.99 1500 Gallons Buy 1500 Gallon Two Compartment Septic Tank with Loose Plumbing and Low Profile Design - IAPMO Certified by Norwesco of Green color for only $2,899.99 Norwesco 1500 Gallon Two Compartment Septic Tank with Loose Plumbing and Low Profile Design - IAPMO Certified 157 69 51 N-43504 $2,899.99
Buy 1500 Gallon Plastic Two Compartment Septic Tank with Gaskets, Tees, and 2 Manhole Covers - IAPMO Certified by Norwesco of Yellow color for only $2,800.00 1500 Gallons Buy 1500 Gallon Plastic Two Compartment Septic Tank with Gaskets, Tees, and 2 Manhole Covers - IAPMO Certified by Norwesco of Yellow color for only $2,800.00 Norwesco 1500 Gallon Plastic Two Compartment Septic Tank with Gaskets, Tees, and 2 Manhole Covers - IAPMO Certified 135 55 70 N-44479 $2,800.00
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