I do it both ways but generally empty the pot and make 2# bars to keep track of what I used. I would need Huntin Dog and NO Deer both to help move my pot if I filled it up. Seriously you do need to empty and clean the pot once in a while just to keep the sides and the pour spout clean and flowing smooth. I just ordered a bottom pour ladle should be here next week as the last one I used moved out of state last week. Then on to the .58 minnies.
Fox :hatsoff:
I keep the pot filled. When I'm finished casting I take a knife with wax on it and scrap the sides of the pot, then add more lead and unplug it. Next time the pot is full and it's fluxed.
I use a big plumber's lead pot and leave the lead in to cool when I'm finished. When I start again, the first thing I do after the lead is melted is to scrape the sides with a ladle. The crud floats on top and I skim it off. Bill