Questions for Evaporust Users

Get a kids wading pool, a 12 volt battery, a small battery charger to keep the battery charged up, a piece of metal like a pipe and washing soda powder. Not baking soda, the washing powder.

You can get the soda powder at the grocery store.
Put the lid in the pool put in three or four cups of the soda powder as you fill it with water. Hook I believe it's the positive to the lid and the negative to the pipe or piece of metal. Do not let the piece of metal and the lid touch. Hook the battery to the two leads hook the battery charger to the battery and the electricity will pull the rust to the pipe. Works great I use it to clean engine blocks crankshafts all kinds of crap. And the neat thing is it's not an acid so after the rust is off you just pressure wash it. But the metal is so clean that the humidity in the air will make it flash rust so be ready for that.