We offer our customers prefabricated concrete stormwater retention tanks made from C30/37 or C35/45 waterproof concrete of a circular or square tank bottom (according to STN EN 206). To achieve the desired water capacity of the reservoir, it is possible to combine various tank types. The entrance into the storm water retention tank is possible through an entrance shaft, composed of shaft rings and a cast-iron shaft cover of the A150-D400 load class.
Stormwater retention tank installation:
The rainwater retention tank is to be installed by means of a truck crane into a prepared excavation on the horizontal ground concrete with the sand bottom. Thickness of the ground concrete is specified by a structural engineer for each building object individually. In case of high groundwater level, the rainwater retention tank needs to be anchored.
Facility service and maintenance:
To assure long-life functionality of the stormwater retention tank, it is necessary to follow operating instructions, check the rainwater retention tank on a regular basis and clean it as needed.