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TW™-Series Septic Tanks in San Francisco

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.

For additional info, please contact us at (510) 886-4455.


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

The TW-Series Septic Tanks are available in five different sizes: TW-375, TW-900, TW-1050,

TW-1250, and TW-1500.

A-1 Tank Service
A-1 Septic Tank Service Inc
San Francisco Septic Tank Repair
Located at

Hayward, CA 94544
Phone: (510) 886-4455
Website: http://www.a1tank.net
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