[klondike98]

I have been successful at taking out water stains with oxalic acid. you can buy it at the hardware store. Mix up a slurry and put it on the stained area. Let it sit keeping it moist with refreshed applications, usually for a lot longer than you would expect and hopefully the stains will reduce enough to look good. Scroll down this thread: https://philcoradio.com/phorum/showthrea...1#pid70611 to see an example.

Someone else will have to comment on the veneers.

I've used two stripping methods. When I need to do the work indoors (if its winter) I use Citristrip. Takes off the old lacquer layers nicely. If I can be outside I'll use lacquer thinner and lots of paper towels (wearing good nitrile or rubber gloves). I've also used 0000 steel wool and lacquer thinner followed by paper towel wipe off. (if the finish is polyurethane, all bets are off...) Citristrip is actually (in my opinion) gentler than lacquer thinner and tends to leave any grain filler that was in the pores alone.