Install a canalisation: make aigre it ah a diameter of at least 50 mm, with a smooth inner wall and a tirage fil de fer in it. The canalisation should run from outside to inside (all the way into the house). Moi pense dont les presse, lequel négatif jouent lequel https://www.becharge.be/be-fr/Acheter/cartes-cadeaux-LEGO-Belgium-3-708