Low profile underground plastic tanks

Nízkoprofilové podzemné plastové nádrže - TD3,2

Utilization of Aquatec underground plastic tanks

Underground utilization

  • Rainwater tank
  • Accumulation tank for sewage water

Low profile underground plastic tank advantages

  • Low profile underground plastic tank for shallow and flat excavation and installation
  • Volume 3,2 m3
  • Excavation only 3,0 x 3,0 x 1,4 m (length-width-depth)
  • Rotational moulding without welds or joints
  • Long life-time
  • Low weight - 140 kg
  • Installation on a compacted sub-base (gravel sub-base)
  • Backfill material gravel 4/8 mm
  • Lockable cover


Low profile underground plastic tanks are 100% water resistant tank  manufactured by the rotomoulding technology. Eliminating the possibility of groundwater occurence the tank is then placed on the compacted sub-base 25 cm thick including the overlapping footprint of the tank by 20 cm. In 30 cm layers 4/8 gravel is used for backfilling the tank and make up the sub-base. Inspection holes in 600 mm diameter are created for the inspection and depletion.The tanks include an integral extension.The inlet pipeline depth is 300 mm under the surface level used with the extension. Additional extensions are available for the deeper inlet. Consulting our trained staff for additional extension is recommended.

Low profile underground plastic tanks are designed with a pre-made inlet. Outlet point can be selected from pre-arranged positions during the installation. The tanks are assembled on the compacted sub-base without using concrete foundation slab. Lockable and UV stabilized cover is included.

Max. inlet pipe depth under surface level is 800 mm for installing a low profile underground plastic tank TD.

Installation video of low profile underground plastic tank TD:

Low profile underground plastic tanks - TD - dimensions:

Type Volume

Length x Width

Total Height
TD 3,2 3,20 2400 x 2400 1180 Sub-base (gravel 4/8 mm)

THE TANK STANDARD FORMAT of low profile underground plastic tank Type TD:

  • polyetylene
  • natural white colour
  • Ø inspection hole 600 mm
  • inlet/outlet into the tank DN 125
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