I'm a novice and newbie, so go easy on me, please :-)
Some houseguests have left serious white rings on our wood dining table, and they cannot be buffed out with various methods (toothpaste, furniture polish, light sanding, etc), so I think I'm faced with doing a repair job. I have previously sanded and varnished a teak picnic table, but never a nice dining room table. And because I really like the old character of this table, I'd prefer to just repair the rings rather than redo the entire top.
I'm hoping that I can buff out the rings with an orbital sander and just touch up the spots, but I don't know what was used to finish the top originally. I expect that I have to do some homework before I do anything, but can anyone point me to a primer on a) determining what a table is finished with b) how to strip off a small spot of that finish c) how to redo that stripped spot.
Thanks, MB