Assessment of the suction tube: In contrast to the excellent tank, the suction tube is rather inconsistent quality. What a perforated cork seal in the tank interior of the waste water tank, I do not understand. The perforated Aufschraubring makes no sense, because you can not screw in the tank ... So another (rubber) seal had her, screwing is of course also with the perforated Aufschraubringmutter. It must then be pushed over the sealing compound between the black tube and white Kunststoffabsauganschluss. This pushes the much too thick applied sealant, what the pipe easily dissolves. Therefore only 2 stars.