I had to send my pot back to Lee. I noticed the melted metal was more like a slushy mess on top and then the spout would solidify between pours. I tried draining it, cleaning it and even tried different ingots thinking I had some bad lead but it did the same thing. It just wasn't keeping the melt hot enough.
I called Lee and they said to send it back. They are either going to fix it or replace it.