TW™-Series Septic Tanks

Infiltrator Systems’ TW-Series Septic tanks offer a revolutionary improvement in plastic septic tank design, offering exceptional strength in comparison to concrete tanks. These tanks provide superior strength for long-term, water-tight performance. Innovative features not found in any other septic tank include: thick, triple wall design manufactured with proprietary state-of-the-art rotomolding technology; permanent, factory-installed structural bulkheads; and reinforced access ports. No special installation, backfill or water filling procedures are required.
Quick4 Infiltrator Chambers

Other Unique Benefits Include:

  • Triple wall provides a thick composite wall structure that acts like a structural I-beam.
  • Bulkheads offer superior structural stability under heavy loads
  • Reinforced access ports do not distort upon backfilling or during pump-outs
  • Can be pumped dry during pump-outs (no need to refill with water)
  • Resistant to flotation in high water table conditions
  • Can be installed with 6 to 48 inches of cover
  • Available as single or dual compartment tanks
  • Suitable for use as septic and pump tanks
  • Flat bottom allow for easy storage and installation

 


Downloads:

Tank Brochure (pdf)
Tank Specification Sheet(pdf)
Tank Installation Instructions (pdf)
Riser Connection Guidance (pdf)
Buoyancy Control (pdf)

Infiltrator Pipe Adapter Guidance (pdf)

TW-Riser Spec Sheet (pdf)

Infiltrator Adapter Flange Guidance (pdf)

Technical Specifications:

TW-300 Specs (cad) (pdf)

TW-500 Specs (cad) (pdf)
TW-900 Specs (cad) (pdf)
TW-1050 Specs (cad) (pdf)
TW-1250 Specs (cad) (pdf)
TW-1500 Specs (cad) (pdf)


The TW-Series Septic Tanks are available in six different sizes: TW-300, TW-500, TW-900,

TW-1050, TW-1250, and TW-1500.