hi grumpy /deejay to answer a few questions yes the lectric washing soda is used as the electrolyte the power is dc. the battery charger i use is a 24/12 volt 30 amp 120 grams of sodium carbonate in 60 odd ltrs of water the current can be raised by adding more sodium carbonate i generally get things bubbling away at 8 to 10 amps x12 volts sometimes i kick off with 10 amps at 24 volts and switch back to the lower setting an hour later to get the above s/b 45/14 chassis clean i gave it a blast with water and degreaser then over night at 10amps at 12 volts its trial and error this process produces hydrogen gas so its best not have it in a small enclosed area i personally undertake this process outside under cover with a common sense approach the pos+ anode goes to the plates u see in below pic and the neg- cathode goes to the piece to be cleaned best results are achieved by suspending the work piece as line of sight is preffered do not use stainless as your anode as it creates a cromium solution in the tank and its toxic after when the piece is removed from the bath i hose it down and clean/scrub it with scotch bright and dish washing liquid then i dry the piece with air compressor and spray ranex rustbuster over it leave for a minute and wipe off the excess them leave it outside for a few days hope this helps [Linked Image]
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