There's definitely a breeze and a smell coming up from the pipe. The u bend hook bit and machine smell OK.
There's no airtight seal, which might help, but might just push the smelly air back into the washing machine.
The water filled U bend should stop the smell. But feeling that breeze means to me check the pipes as it that isn't right.
@lynx started
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There's definitely a breeze and a smell coming up from the pipe. The u bend hook bit and machine smell OK.
There's no airtight seal, which might help, but might just push the smelly air back into the washing machine.