Let the spout mechanism get dirty from contaminated lead any any pot will leak. I have 2 of the dreaded 20# “Drip-o-matics “ and one of the little old 10# pots from Lyman. In the past, my dad and I also had another Lyman 10# pot and one of the first of their big orange 20 pounders that Dad bought and after using to smelt a half ton of dirty stuff got choked up. You’d have to have known my father to appreciate how he destroyed this big Lyman pot trying to “fix” it.
Last week I was visiting my friend Dale53 and used his meticulously maintained big green pot from RCBS. As usual it worked well, but he sets it up and starts the casting process, so as expected it worked well except for the occasional drip that comes from every bottom pour pot I’ve ever used.
The point of this rant is found in the very first sentence and the very last. They all will leak without proper care. With proper care, they will only leak a little. ALL OF THEM!
Froggie