Thanks H-Man for sending me image. That really helped. I think I'll be able to access through ceiling. And if so, just wondering if I ought to just have a
new one installed. I was trying to avoid having to do that.
Could the loopsided flange be due to the negligence of the contractor not caring whether the pipe was cut straight or not? Even if I step on it - it doesn't want to budge.
Also, I can't seem to locate any replacment kit that would work - I can get the screw holes to line up but then the hold down bolt would't be properly positioned. Any idea where I might order one that would work?
Many thanks for your help.