Pete,
Getting my electrolysis tank set up to clean some castings, sheet metal, and stampings for a summer tractor project.
I use Arm&Hammer washing soda for the mix into water. Have us d electrolysis many times to clean parts. I did one tractor gas tank. You need to submerg the tank in the he solution and have a anode inside the tank, not touching the tank.
Regards,
Chris and Cheryl