It is of course possible to empty the trash by right-clicking on the trash icon or on the trash folder of the File manager.
But sometimes, the trash appears empty, whereas deleted files are still not suppressed. In this case, check in /home/rus/.local/share/trash/files. If this folder is not empty, clean it up.
Besides, the trash linked to the shared disk shall be emptied as well, in /shared/.Trash-1000
An autotrash program can as well be installed: