Flushing shutters for rain watter retention tanks Flushing shutter is used for cleaning settled sludge from rain water retention tanks. About this Product Flushing shutter is used for cleaning settled sludge from rain water retention tanks. Technical description: A flushing shutter is an eccentrically placed tipping tub. The shutter is suspended on bracket arms anchored to rain water retention tank. Tipping is enabled by a pair of spherical-roller bearings. Material: Flushing shutters are made of stainless steel. Marking: FS- Flushing shutters d/l d- tub diameter l- tub length Flushing shutters are supplied with following basic parts: Flushing tub Bracket arms and bearings Basic range: Recommended dimensions: d – tub diameter (mm): 400, 500, 600 l – tub length (m): od 2 do 6 According to customer’s wish we are able to manufacture flushing shutters of other dimensions in compliance with investor’s demands.