Hi,

I have an old oak parquet floor. Unfortunately some baby er... urine
was deposited on it and left for a few hours. The consequence was that
it penetrated the varnish and the wood and it left some dark stains in
it.
I want to repair it and I only want to sand the old varnish on the
affected parquet sections but I do not wish to sand the stained areas
so deeply that I will end up leaving a valley.
Does anyone know another method of getting rid of the stains?

Help will be much appreciated.

I do not hang my hat on this but a google search on the words
urine/stain/varnish/floor shows this:

http://www.thriftyfun.com/tf877224.tip.html

Is it really varnish ?