My sister has the big cast iron pot/tub that my mother told us her mother used to cook/wash clothes outside with a wood fire under the pot. She also said that they used to make their own soap from lye and animal fat (I think it was). Times they have changed. Also, I think clothes washing used to be an all day affair.
Wash day was Monday and ironing day was Tues. On Mon. we always ate what mom called wash day beans. Tough life and it hasn’t been that long ago.