The fibreglass proves much more economical in the long run. Considering all the benefits associated with the purchase, installation, maintenance and durability, fibreglass tank is a much more profitable solution, especially for systems of medium to large capacity.


Once installed and buried, the fibreglass tank becomes completely inert. It thus has outstanding durability and optimum tightness throughout. When compared to other materials, fibreglass offers a myriad of benefits:

No deterioration

  • Unlike concrete, fibreglass contains no metal and undergoes no degradation over time. Indeed there is no galvanic action on the armature that may degrade performance.

No internal or external corrosion

  • The fibreglass tank never rusts since it contains no metal reinforcement. Moreover, the non-porous smooth interior finish prevents the proliferation of algae, bacteria or microbes (MIC, microbial induced corrosion).

No structural weakness

  • Unlike concrete, fibreglass is non-porous material which undergoes no dilation. This stability provides a complete seal and prevents any possible cracks due to expansion and contraction over time. The unibody construction of fibreglass makes it a robust and monolithic solution with no weakness that could lead to a leak.

Discover our documentation about our fiberglass tanks to learn more.


Thanks to its monohull and impermeable nature, the fibreglass tank requires no maintenance program nor any waterproofing coating. Thus, it conveniently simplifies your operations.

  • No special monitoring requires
  • Insensitivity to stray electrical currents
  • No seal replacement
  • No overlay throughout the life of the reservoir
  • Total peace of mind for years to come


A fibreglass tank is almost 30 times lighter than a comparable concrete tank*. Forget the heavy cranes and enjoy the substantial savings.

Easy handling

  • This extraordinary lightness facilitates transportation, installation and relocation. In addition, the strength and structure of the monocoque fibreglass make a product that can withstand the worst installation conditions. No assembly on site is required.


  • In the case where the water table would reach the tank, the anchoring system will offset the floating potential. Even if the tank is empty and very light weight, the fiberglass tank will remain extremely stable. It’s designed for dry or flooded excavation.


With the fibreglass tank, it is easy to connect complementary tanks through the principle of communicating vessels. This feature allows you to design systems to unlimited capacity.

  • Variety of standard volumes up to 150 m³
  • Variable configurations that can adapt to the constraints of land
  • Design and manufacture tailored to meet customers’ specific needs

* Comparison based on the weight of a septic tank of 60 m³. 66 320 Kg for a concrete tank vs 2109 kg for a fibreglass tank.

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