Removing old Bathroom Sink Fixture
I am trying to remove an old bathroom sink fixture, including the stopper and have run into a problem. I have removed everything except the 5 inch piping used for the drain that connects directly to the u-shaped pipe carrying the water out. I can't remove the washer at the top of this pipe, directly touching to the sink basin. When I try top twist it off with a wrench, it just moves the entire pipe around. I can not think of a way to leverage the pipe, so that only the washer moves. Any ideas? Please help?
P.S. This sink fixture was originally installed 20 years ago.