That looks brand new.
How do you rinse off and treat your parts after they come out? I understand just washing them down with water, but what about flash rusting? I have a 55 gal plastic drum I want to use as tank to clean a tractor hood and an old 15 gal milk metal milk jug.
The cast iron skillet I rinsed off with hot water and a Scotch Bright pad and oiled it up with Olive Oil immediately.
The GT parts, I rinse and Scotch Bright them, The Hot water 160F makes them dry fast, I then wipe them down with mineral spirits and dry again, then shoot them with Etching Primary immediately.
If I don't have time to work on them when they are done, I just leave them in the tank til I can, it doesn't affect them staying in the tank.