hydroFilt GmbH is a consulting company specialized in water treatment. Therefore, broad know-how of water chemistry and influencing hydrochemical processes is available. HydroFilt works also in the sector of water usage and develops concepts for multiple uses of different water types. For MALGEG hydroFilt will be involved in the compilation of data of the geothermal plant in Haag, the initial sampling and supervision of the demonstrator plant in Haag. It will further be involved in the determination of water treatment processes and in the validation, calibration and evaluation of the models and output of the machine learning tools.