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
