Covered or placed on sealing, DRAINTUBE FT can drain rainwater. Under tightness, it drains biogas.
It thus offers the following advantages:
- Filtration of the soil cover,
- Mechanical protection of the geomembrane,
- Improved sealing performance by reducing the hydraulic load on the geomembrane,
- Optimizing the collection of biogas,
- Capture of biogas in the waste mass.
It results from the assembly by needling of the following:
- Needled nonwoven filter in PP,
- Mini-drains perforated PP regularly
- Drainage sheet needled nonwoven PP.