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Hey folks,
I've had my Lyman furnace for a dozen or more years, and I have never had the bottom spout "freeze" until after I pulled the plug and let it all cool down. When casting, it is a continuous process for me, but there are times when I let the pot sit for five to ten minutes while I change moulds on handles, and I still do not get a "freeze" as you have described. Then again, I keep the temperature quite hot for my casting - hotter than what is usually recommended.
Best wishes,
Dave Wile
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