I have hardwood floors in the kitchen & entry that were covered with sheet
vinyl and I'd like to restore the original floors. I will hire a pro to do
the sanding and refinish but I want to do my own vinyl and glue removal to
save about US$300. Besides a floor scrapper and water, is there anything
else I need? How wet can I get the hardwoods before I have to worry about
permanent damage? Any advice is welcome. Thanks!

crabshell

Goof off is your friend! It should remove the old glue. Its a big slow
job You shouldnt damage the hard wood floor, although consider it
might have been covered by vinyl for a very good reason.

Be prepared for bad news