Building, architectural and industrial solutions provider REHAU also provides its own range of civil infrastructure solutions called AWASHAFT.

AWASHAFT maintenance structure lasts twice as long as traditional concrete solutions, which saves money for the city and community.

A sewer system should last as long as possible. That’s why REHAU’s AWASHAFT solution is watertight from installation and crack-proof by design. 

AWASHAFT is constructed from pure polypropylene and it lasts up to 100 years – that’s 50 years longer than a concrete sewer. It is a high quality material that is free from recycled materials or fillers, meaning it strikes a better balance between stiffness and impact strength.

AWASHAFT also provides an environmentally friendly alternative – due to the material and manufacturing process, the energy consumed and CO2 emitted to produce one unit is significantly reduced compared to concrete.

AWASHAFT is resistant to aggressive gases of a sewer system, 95 per cent lighter and two times faster to install than a concrete chamber. 

AWASHAFT is also: 

  • Safe to handle
  • Easy to maneuver inside/outside of the trench (much lighter)
  • Corrosion resistant
  • Safe and easy to operate and maintain

REHAU AWASHAFT is available with optional corrosion proof and slip resistant ladders for easy, safe and reliable operation for the long-term.

AWASHAFT installers are encouraged to approach REHAU technical experts for free quotes, design services, onsite training and group training. 

REHAU’s technical experts can support designers to share their knowledge on the relevant standards and codes updates. They can provide product drawings, designs and selection support.


This partner content is brought to you by REHAU. For more information, visit

Charlotte Pordage is Editor of Utility magazine, a position she has held since November 2018. She joined the team as an Associate Editor in October 2017, after sharpening her writing and editing skills across a range of print and digital publications. Charlotte graduated from Royal Holloway, University of London, in 2011 with joint honours in English and Latin. When she's not putting together Australia's only dedicated utility magazine, she can usually be found riding her horse or curled up with a good book.

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