Electrolysis v Rust Remove Rust from Car Parts. Better than Citric Acid?

This week I've been using Electrolysis to remove rust from old car parts. In this video I show you how I did this and we examine the results. Thanks Craig for your advice. :)
EDIT: Apparently you need line of sight from the cathode to the rust for best results. This would explain the lack of cleaning within the metal box.

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