Gadolhadorah,
Would you give a dollar to tzadakah for every pot, pan etc. that has ever had to be toiveled in mikvah because of some crooked mashgiach, whether chasddish, litivish or Eastern Shore leading to treifus being sold to a frum yid?
That would come out to a grand total of $0 to tzedaka 🙁
Libun or hagalah would be required after accidentally cooking treifus in your pot, pan, etc., but not tevilah.