Underground Detention Tanks

EnviroModule™2 Brochure    Design & Installation Guide    Installation Video    FlushMax™ Brochure

Ausdrain EnviroModule™2 Underground Detention Tanks can be easily installed on any project, saving valuable time, labour and money. Compared to a concrete tank, there are no footings/slabs, blockwork or reinforcement required.

Each tank is sealed with a strong and durable waterproof liner. Ausdrain EnviroModule™’s create the required void storage allowing stormwater to be temporarily stored inside the tank before discharging to a designated outlet.

EnviroModule™’s are available in standard duty, suitable for installation under landscaped areas, or extra duty, for trafficable situations such as carparks or driveways.

The modular nature of the tank allows greater scope for design flexibility and tank sizing.

Stormwater is pre-filtered via an EnviroSump or GPT. This provides valuable at source water quality benefits and reduces the need for long-term tank maintenance. The water then enters a pre-cast pit that is fitted with an orifice plate to reduce the rate of discharge from the tank to the designated stormwater outlet.

Ausdrain’s EnviroModule™2 Underground Detention Tanks are available from small tanks for residential projects, to large detention systems for commercial applications. Council approval should always be sought prior to installation.

Applications of EnviroModule™2 Onsite Detention Tanks:

Residential projects, sub-divisions, roads & carparks, schools & colleges, industrial parks, council projects, commercial projects

Want to know more about how to use EnviroModule™2 in Underground Detention Tanks?

Download our EnviroModule™2 Product Brochure or watch our install video below:

EnviroModule™2 Brochure    Design & Installation Guide    Installation Video    FlushMax™ Brochure

System Components

  1. Downpipe
  2. Inlet pipe
  3. Discharge control pit
  4. Lockable lid/grate
  5. EnviroModule™s
  6. Impermeable liner
  7. Protection fabric
  8. Stabilised sand backfill
  9. Crushed rock
  10. Maximesh screen
  11. Orifice plate
  12. Outlet to stormwater