Install a canalisation: make aigre it eh a diameter of at least 50 mm, with a smooth inner wall and a traction fil de fer in it. The tuyau should run from outside to inside (all the way into the house). I want to transfer my number to Changeant Vikings. https://www.becharge.be/be-fr/Acheter/cartes-cadeaux-LEGO-Belgium-3-708