To prevent odors from occurring in the kitchen sink, a drain cover (drink cap) is attached to the one-trap drain outlet.

⌛Time it takes to read this article: 3 minutesI was concerned about the smell from the drain of the kitchen sink installed in my apartment, so I installed the "KALOLINNA drain cover" I purchased from Amazon to the drain of the One Trap. After that, the backflow of air from the drain stopped, completely resolving this problem!