Questions for Evaporust Users

Thank you. It's a little worse than the photos show. There are a few pin holes on the outer rear edge that I'll need to cut out and repair. I'd rather treat the rust as best I can than just cover it with goopy paint that I'd likely get more on me than the rust metal. Just trying to decide whether to take the acid approach, or give evaporust a try.
Ya gotta keep it wet. Figure that out and it will work. It will take several attempts to remove all of the rust. Soak that sucker.