We have developed a drain for tank rooms with 2 compartments, both with an outlet Ø110mm at the bottomt. The upper side of the drain can be finished off with a stainless steel slat or a coated steel slat. Both compartments have a collection capacity of > 20 liters. The complete drain can easily be installed on a prefab cellar, because of the integrally formed nocks. 
    

              

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