Space saving, easy to install and lightweight – specifically designed for use in rural areas – with a capacity of 300 litres.

Every wastewater treatment system (both primary and secondary) requires a land application area to discharge the treated effluent. GRAF has developed a strong and durable arch trench drain (also refered to as leach drain) to achive this via absorption principle in the most sustaibable and efficient way.

  • The GRAF infiltration tunnel has been mainly designed for the use in private and rural areas
  • The system which consists of one or several tunnel modules and two end plates can be extended at will
  • Ergnomically Designed & Engineered with ease of use in mind, a single module only weights 11kg.
  • Once installed, the finished level can be used by heavy duty vehicles
  • The infiltration tunnel can be loaded permanently up to 59 kN/sqm and thus is also suitable for lorry-bearing
  • 5 years warranty

Sizing

Volume [l]Length [mm]Width [mm]Height [mm]Weight [kg]Quantityorder no.add to enquiry
3001160800510111230010

calculated size Request for information

Accessory