I am having trouble removing an old tub spout. There is a large hole on the bottom side indicating that there should be a set screw. However, I am unable to see in there. Also, the space between the tub and the spout is so small, I can only fit a pinky in there. I don't feel anything like a screw... just the pipe itself. So, I tried twisting this thing off and it just won't budge. I am at a loss as to what to do next. I don't want to do too much twisting and turning and potentially damage the pipe or break something behind the wall. Any ideas on what to do would be greatly appreciated. I uploaded the best picture I could get of the under side of the spout.