UV Sand Filter SunSun CSF 500 * The SunSun Moving Bed Filter CSF-500 is a space-saving main filter with enormous biocapacity. Due to the long-term reduction of the nitrate and phosphate value, thread algae are significantly reduced. * For particularly effective cleaning, the Bedfilter should be preceded by good mechanical water purification to avoid contamination by solids. * The SunSun pond sand filter CSF-500has a backwash system with which cleaning can be done quickly and easily. * The integrated UV clarifier with 36 watts of power provides additional water purification. The algae contained in the water clump together due to the UV radiation of the pond clarifier. UV radiation alters the tertiary and quaternary structures of algae proteins (algal proteins). This means the killing of the algae. * The maximum flow rate is about 9.5 m3 / h, the pressure in the filter should not rise above 0.3 bar. If the pressure exceeds the maximum value, please use the backwash system to clean the filter. * The SunSun CSF-500 is recommended for a pond size up to 50m3