re the electrolisis, if you use regular steel as a positive anode the waste is safe to put on your lawn and is iron rich, good for your grass. Do NOT use stainless steel, it is toxid and cancer causing. Our rims are in 6 parts, the center casting then a spring loaded band that forces the metal ring under the rubber against the center casting then the 2 outer rings that holds everything together wit 12 carage bolts and nuts, I shall post a picture of it soon. The wheel weight so much (200 lbs) so it did not move.