Hey fellows I have a lyman mag 25 digital melting furnace and it started leaking awhile back I ordered a new shut-off rod still leaked so I had read to use valve grinding compound so I tried the fine to try an help seat the rod still leaks turn the rod half round still leaks any help would be muchly appreciated, I called Lyman yesterday and the lady told me it was out of warranty so they couldn't help me other than sell me a new one.