I ran the other LCA in three different orientations today and yesterday. The bath got pretty hot eventually. There is no sign of rust anywhere but the surface is pretty black. I read about this, it is another form of iron oxide and it comes off pretty easily but it's a pain to brush it off and to get into all the crevices. I could use a chemical way of removing it. I'll ask around some. I know plenty of people with a degree in chemical engineering.
I didn't bring my phone when I removed it from the bath so the pics will be postponed.