I'm curious to know what the end result looks like when installing french drains in a finished basement. Is there a gap between the wall and flooring? If so, how large is it, i.e. inches from wall? Foundation wall or drywall? When reinstalling tile or carpeting is there a space around the perimeter of outside wall? If so, how much? Does cement or gravel show? Please let me know as soon as possible. If you can send me pictures that would be much appreciated. Thank you in advance