The tank module RAIN WALL is part of a rain water storage system allowing urban households and gardens to take advantage of everyday rainfall without having to install an underground cistern. By assembling a number of modules a whole new façade pattern or even a free-standing structure can be created. The openly designed system harvests rooftop rainwater and can be equipped with further applications to increase storage capacity or to install vertical gardens in densely populated cities.

The combination of modules, tanks and garden elements can be customized depending on the individual needs of different users. Rain Wall can be put up in the public or also on privat housing, in which the user could even control that privately owned tank using a mobile application.