I had both tumblers running at the same time. One had walnut with some jeweler's rouge in it and the other was filled with cob treated with some polishing compound. I dumped the first tumbler into the separator and took out my brass that was ready for the press and carried them inside. Somehow I got side tracked for a few minutes before returning to my work. I then dumped the cob to separate out the finished loads that I will be shooting this weekend.
You guessed it. I forgot to empty out the bucket before dumping the second tumbler. I now have plenty of mixed media. Oh well, I was planning on replacing both anyhow.