I’ve always stripped my cast iron with just a lye bath. I have a large amount to restore so I set up an E-tank and used it for the first time yesterday. I was extremely happy with the results. This morning I tried to clean another pan and it’s not working. It appears that the gauge is showing charged which I don’t understand. The charger as far as I know is a manual charger and it did work perfectly the first time. Does anyone have any helpful ideas?