Anode rod is seized

thanks for the replies. I'm gonna use an impact to rattle it. I restored cars for 20+ yrs and have delt with rusted fasteners a lot. Tightenenig it first is always the first attempt. I just thought I would get some other ideas. When coroded or rusted a rattle from a gun always worked better than a constant pressure. I thought maybe there was a trick I hadn't tried before. Won't be a next time. Gonna plug it if I get the rod out. This trailer was not maintained very well by prior owner/owners. Sad, it's not that tough to just take care of things. Some people !!!

Again, thanks to all that jumped in. Why I stay on this site. Great bunch of people.