FAQ

Technical & Regulatory FAQs

Finding a fast, simple way to access technical details on-site is crucial for modern plumbing.
Below are the answers to the most common questions regarding the FastBend and FastBend DT.

General Product Questions

It is a revolutionary replacement for concrete under below-ground drainage bends. It eliminates the labour-intensive need to mix and pour concrete in a trench, saving you significant time and cost on-site.

You should use it for every below-ground 90-degree bend and Disconnector Trap (DT) bend installed in a vertical plane.

No. This Performance Solution demonstrates that when installed according to manufacturer instructions, the FastBend provides equivalent stability to a concrete pad, making the pad unnecessary.

  • Speed: Faster installation with no waiting for concrete to set.
  • Compliance: Meets NCC Volume Three performance requirements.
  • Sustainability: Reduces CO2 emissions and eliminates plastic waste from premixed concrete packaging.
  • Stability: The 200mm square proprietary grid base locks into bedding material to prevent lateral and downward movement.

Regulatory & Compliance Questions

Under AS/NZS 3500.2 Clause 5.3, concrete pads (minimum 100mm thick) are required under all bends greater than DN65 forming risers and under gully traps.

Yes, and we have provided it for you. Because the product replaces a “Deemed-to-Satisfy” requirement (concrete), you must use this Performance Solution to confirm compliance with the Plumbing Code of Australia (PCA).

Absolutely. FastBend products are WaterMarked (License WMK26376) and comply with AS/NZS 1260 for PVC-U pipes and fittings.

Failing to support a bend can lead to pipe movement, damage during maintenance, or system failure. Non-compliant work can result in heavy fines from councils, expensive re-digs, and significant rectification costs.

Installation Questions

1. Place the fitting on a solid base of approved bedding material per AS/NZS 3500.
2. Apply primer and glue to joints.
3. Use a plumber’s level to ensure the fitting is perfectly vertical and horizontal.
4. Backfill the area, ensuring the bedding material integrates with the proprietary grid base.

The proprietary grid base is designed with holes that allow it to be pinned directly to the trench base for added stability in specific ground conditions.