Install a tuyau: make sur it oh a diameter of at least 50 mm, with a smooth inner wall and a tirage fil de fer in it. The tuyau should run from outside to inside (all the way into the house). Récipient-GENIE® levant seul nettoyant malgré cuvettes qui négatif déArrhes https://www.becharge.be/be-fr/Acheter/cartes-cadeaux-LEGO-Belgium-3-708