Quote:
Originally Posted by theunchosen
Christ is right about the O2 being a problem. Its the reason that electrolysis machines are enormously expensive. The diodes have to be made out of exotic metals that resist corrosion(like your cat but in much greater quantities).
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Yet welding oxygen is stored in non-exotic metal cylinders, and is not all that expensive - something like $25 to refill a cylinder, IIRC.