I have a GE Profile Model #257 155-PF5@@M1WBB, French Door bottom freezer, with internal water dispense, and ice maker PLEASE HELP LEAKING BOTTOM, new Floor and would like to do this myself freezer has sheet of ice inside on bottom constantly cleaning it where is the drain plug so I may clean it only 3 yrs old such garbage !

Bottom rear

See part 273.
May or may not have to remove parts 905,186,187,191