Local Infiltration Gaining Increasing Significance

Graf Rain Bloc inspect

The public demand for two-dimensional, local rainwater harvesting and management is continually growing due to ever more frequent flood catastrophes. Otto Graf GmbH from Teningen is meeting this demand with its Rain Bloc inspect system. The new infiltration module combine the requirements for an ecologically sound approach to rainwater with the possibility of saving sealing fees.

The Rain Bloc has three times the storage volume of a conventional gravel ditch. The low requirement for ground excavation means a substantial cost saving. Additionally, the easy installation, high infiltration performance and diverse usage possibilities all speak highly in this product’s favour.

The revised Rain Bloc inspect is particularly suitable for public and commercial usage. It can be used for roof, square and road drainage and for drainage of industrial property. The lorry-bearing version guarantees extreme load capacity thanks to its stable column structure. The infiltration module can carry up to 10 tons per sqm for a short time with a earth covering of 80 cm. The standard car-bearing version can bear a short-term load of 7.5 tons per sqm. Thus, there are no limits on the use and design of the surface above; parking, gardens, roads – anything is possible.

Installing the module is easy, fast and variable. The Rain Bloc inspect can be installed in rows or block form, with a maximum of 10 layers, depending on the local conditions and the desired storage capacity. The system has already been installed at several large properties, such as shopping centres and stadiums.

The unique inspect rim facilitates flexible laying of inspection channels within the infiltration system. The inspect rim is already prefitted and only has to be installed in the tried and tested rain bloc system. The infiltration system can be inspected easily with a push-rod camera through the opening of diameter DN 150. Crossing inspection channels can also be laid easily.

Combining rainwater harvesting with a GRAF infiltration system is ideal. By harvesting rainwater 50 % of drinking water can be replaced with no loss of convenience. With downstream infiltration you not only save expensive drinking water, but also the sewage fees.

The pictures may only be used for newspapers and magazines and only for editorial publications. To ensure our continued copyright over usage of the pictures, reproduction is only permitted with the source stated as “Otto Graf GmbH”.