Talk:Hatch/@comment-31349342-20170703040549/@comment-2601:245:4480:36CC:7C0B:7B05:DACB:248B-20170911082256

It works for hatches on the bottom, because the air inside wont travel down (though high water pressure might effect that, not sure).

As for side and roof hatches? I was wondering the same thing. Space magic? Maybe the drainage system just works miracles?