I followed up on the Electrolysis DE-rusting metal thread by Nate
Nagel. Using this video to build the tank:
I only needed the super washing soda and iron re bar.
Cost only ~ $7 for both. Everything else was in the garage.
Used a cup and a half of washing soda in 15 gallons of water.
Charger was set to 2 amps.
Cleaned cast iron.
DIY photo made using freeware suggested by Danny D.
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