These septic tanks deliver superior strength, easier installation, and greater cost efficiency than traditional concrete systems. Constructed from durable HDPE with built-in UV inhibitors, they feature a horizontal flow design for below-ground installation up to 36". A custom-molded nitrile rubber gasket ensures a dependable, watertight seal, while the lid is secured with corrosion-resistant nylon ties, eliminating the need for metal fasteners. Each tank meets wastewater treatment standards and includes a unique serial code for traceability. Models with capacities of 1,000 gallons and larger feature an internal baffle system that slows wastewater flow to improve separation, allowing solids to settle while partially treated liquid exits for further treatment. These larger tanks are available in one- or two-compartment configurations, enhancing natural separation of solids and liquids for efficient household wastewater treatment.
- Made of UV-stabilized HDPE
- Locking lid with corrosion-resistant nylon ties; Watertight nitrile rubber gasket seal in lid
- Designed for below-ground wastewater use
- Horizontal flow design for efficient processing
- Maximum specific gravity: 1.7
- Reference county, state, & federal codes for complete installation details
- 25560, 25562 & 25564 meet IAPMO/ANSI Z1000-2013 & CSA B66-2016 standards
- Height listed is with the lid; see sku page & drawings for details
Note: Product testing for individual applications is recommended before use. U.S. Plastic Corp. cannot be held liable for individual application failures.