I live in Minneapolis, Minnesota and am considering finishing a room in my basement that currently has a floor drain in it. Does anyone out there know whether there is a requirement in the city of Minneapolis to maintain a floor drain in the basement? It’s a 1930s house so older. I have owned 2 other homes in other parts of the country 1950s and 1970’s construction and neither of them had a basement floor drain. So maybe this was an old requirement?