You should't have to clean your pot at all, as long as you don't put crap in there. Pure lead is no problem. Any lead that is clean no problem. Wheel weights and lead that has glue or grime on it should be melted in a small cast iron pot, then skim the crap off. Now take the cleaned lead with a ladle, and pour it into small mini muffin pans. When the lead cools in the muffin pans, this is about the right size to put into your pouring pot.....As far as cleaning a bottom pour pot, slowly drain you lead in a mini-muffin pan. Once all the lead is gone from you pouring pot, unplug it, and wait till it cools awhile. Now you can take some course steel wool, and scour the inside. Take off your plunger and look at it for concentricity. Clean it as well. Clean pouring hole. Blow out all steel wool, reassemble, put your lead back in, plug in and wait till the lead melts and add some more till full..... Flux lead in your pouring pot by mixing your lead with the lighted flux, and then carefully collect all the crap on top after the burn is done and put in small can for later disposal. Read the sticky above about fluxing in the wire bait forum. Excellent information......I get my lead from a printer, old style type, dentist, scrap yard, tire store. One last final bit of info. Lead is very hot be very careful. Muffin pans get very hot and heavy when filled with lead. Think extreme caution when working with lead. You don't want to get burned. Trust me you will never forget it and the healing process is very slow...............Be careful