Unclogging the shower drain in my RV February 17, 2024 at 9:49 am #40006 Tory JonKeymaster Joined: Nov 2019 Posts: 305 Likes: 326LikeUp1::^This. And I’d start with just cleaning out the strainer to see if that helps since its a slow drain. If you need it fixed asap, grab a plunger and plunge the drain.