The RAITA HS cleaning process is based on efficient biofiltration of gray wastewater. The microbes are in the biofilter and in the water, which is circulated through the filter with an air lift pump (no moving parts). The RAITA HS cleaning process is extremely resistant to load fluctuations and reacts quickly to changes in the amount of water and load.
Organic load and nutrients are broken down thanks to biological microbial activity (biofilm) - the cleaning power and technical properties are in accordance with EU standards - see the declaration of conformity of the RAITA HS treatment plant ("declaration of conformity" use and installation instructions from the link) regarding the cleaning power and technical properties of the device. The cleaning efficiency of the HS treatment plant has been tested, see link (HS cleaning efficiency).
More information about the HS treatment plant on the manufacturer's website (link)