“Rachtzah” (רחצה) is the washing of one’s hands which is done when a person eats bread (which includes matzah). There really is nothing special about the Rachtzah of Pesach. But once upon a time there was a difference. Rav Amaram Gaon ( who lived in the ninth century) makes reference to an erroneous custom regarding the blessings said when performing Rachtzah.
So there are insights into Rachtzah ( such as learning about erroneous customs from the ninth century) and I hope that this class will be interesting. At this point I would also ask the Houthis not to launch any missiles tonight since they very rudely disturbed last night’s class with a missile attack.