Tunetanken fully cast rainwater tunnels are designed to be a environmentally friendly drainage solution of rainwater, so that the existing sewage system is spared. At the same time, the rainwater that seeps from the tunnel and down through the ground helps to ensure the formation of groundwater.
Tunetanken fully cast rainwater tunnels for rainwater management has closed ends on both sides and can be delivered with 1 pc. access shaft for cleaning and inspection purposes. The rainwater tunnel is standard with a buoyancy protection edge.
The rainwater tunnels are specially developed for professional rainwater management. Every module can be inspected and cleaned as needed. A safe system that is fast and easy to install. It will always be taking into account, that the soil in which the rainwater tunnel is to be installed, has the sufficient infiltration capacity.
Tunetanken rainwater tunnel are manufactured in fiber-reinforced composite material and does not demand geo textile or other kinds of protection before covering the tunnel.