ARIS develops and produces rainwater management systems. Contrary to the rest of the market, we focus on big installations such as for industrial, commercial or public buildings. For us the small family home systems are more a spin-off from our main field. Rainwater management includes harvesting, using, retaining and soaking away the rainwater. A new branch are systems combining the use of rainwater with fire fighting systems, which results in economically and technically very attractive systems. Another branch we recently added to our activities is Greywater recycling, which means collecting and purifying the runoff water from handwash basins and showers, using it for the same purposes as collected rainwater. From the beginning we did intense research on rainwater-specific technical solutions. So we were the first to integrate rainwater filters into the underground tank, making the system easier to install and safer to operate. Rainwater central units combining all components required inside the house (pump, mains water top up, control unit) are common today. We also were the 1st to develop and sell them in 1999 already. We keep some patents for technical solutions like our LUPO filter that fulfils all requirements to a rainwater filter in a very unique and user friendly way, or our KIM!™-tank level measurement that works without any sensor outside in the tank and needs no adjustment. Our systems are manufactured specifically for each project and thus meet the requirements on site as close as technically possible. Since saving resources is the main purpose of our work, the energy consumption of our systems is always an important factor. We minimize it by using optimized power supplies and frequency-controlled pumps wherever possible. The use of the locally available resource water from heaven instead of mains water being pumped often over long distances and purified with high energy consumption, is energy-saving in itself. Our aim is to keep defining the technical state of the art in rainwater management and achieve market leadership by being the best in technology, quality and in customer care.