This is a very nice video from Ann Olga Koloski-Ostrow on ancient Roman sanitation. Professor Koloski-Ostrow, the self-described "Queen of Latrines," shares her years in archaeological research in the subject on the video. I wrote a review of Professor Koloski-Ostrow's  excellent book "The Archaeology of Sanitation in Roman Italy" a few years back:  https://www.unrv.com/book-review/archaeology-of-sanitation.php Here's a wonderful new review the professor's excellent work: