Works well - instructions need a tweak

Everything worked like a charm, but the instructions in PhotoSweeper say to trash the “Trash (photosweeper)” album it creates in the Photos app. Deleting this album does not delete the photos; what it does do is start you over at square one. What you need to do instead is open the “Trash (photosweeper)” album, select the photos, and delete them there. They’ll go into the recently deleted folder so if you want to get rid of them permanently (now vs. later), go to File, show recently deleted, and delete them again.

At last! about PhotoSweeper