Sludge collecting basin made of MIRANIT resin-bonded mineral material with pore-free smooth surface (temperature-resistant up to 80°C). Large inner radii. Alpine white colour. Version with 2-chamber system with removable divider made of plastic material, overflow for a controlled outflow into a customer-provided floor drain. On lockable rolls. DN 50 overflow with PVC pipe elbow on the side. PVC pipe and pipe elbows including mounting material.