We live on a windy coast of North Sea. High wind is a norm here. One of the problems I face with the wind: it comes out from kitchen sink drainage pipe. If it is blowy outside, you can feel a draft coming from the drainage pipe.
Because the drainage pipe is not sealed, the wind blows up the pipes and comes out from my sink drain. Making the kitchen colder (we have enough vents there already!)
Is there anything can be done to prevent this draft?
I'm thinking cover the drain hole (the one on the picture) with something, but could it not cause more problems?
Thin pipe on the first photo on the left is a waste from dishwasher.