I don't use a resistor, just straight circuit.
Never let the rods touch, it would cause a short if they did. I use a quart mason jar. Use distilled water with 2-3 drops saline to start the electrolysis.
Just wish I could determine the overall concentration. I usually let it run until I get a very pale look. I never heard of the resistor before but I'll look into it.
I use a nebulizer for colds, etc.
Sorry- Pale YELLOW look.
Just followed an online recco on the yellow. Don't let it get too dark Solution will turn more yellow the longer you leave it on. I'll try the resistor though. Thanks for the tip!