a new acquaintance was over to the house and we were talking cleaning cast iron, he told me he had a cast iron plate from an old table saw that needed to be cleaned. it was like 2 ft by 3 ft, and i said to myself, "SELF", how would you clean that? he explained, kids small swimming pool, made a good lye tank and did a wonderful job. i thanked him as i have a wagner griddle my daughter gave me, 24 x 12, and thats to big for my lye tank, and it might be to big for the e tank too.