The setup on the left side does wash a crused ore passing in front of it, while the setup with the water logged trapdoor on the right side does not work.
Yet, water particles do appear in front of both trap doors.

This issue has been marked as stale because it has been inactive for 3 weeks. It will be closed if it remains inactive for another 3 weeks.

This issue has been closed since it has been inactive for 3 weeks since it was marked as stale.