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Rainwater filter for bigger roof areas. The 3P Volume Filter has to be installed in a pilot shaft (Ø 1200 mm). Normally standard concrete shafts are used. The filter can be delivered to the site yet pre-assembled in the shaft.
Two step cleaning system, therefore high level of filtering efficiency, independent of flow rate.
Due to the steep inclination of the filter cartridge the dirt is continuously cleaned away into the sewer. The connection to the sewer is installed at the shaft. The dirt falls down on the bottom of the shaft and is washed away with the next strong rainfall.