I recently pulled up our old carpeting in our dining room and sanded down the hardware floors to bare wood. I was pleasantly surprised that the floor looked really good. There were no visible stains on the floor and the wood grain was very consistent throughout the floor. I was really looking forward to getting a coat of stain on it to see how it was going to look.

After putting on a coat of stain, some stain spots have shown up. I'm wondering if they are pet urine stains. I think the previous owner of the house had a pet.

Obviously I'm very disappointed with the finish, but I 'm not sure what I should do from this point. I have one coat of stain on the floor, but haven't put the polyurethane on yet.

I went to a local paint store and was advised to try wood bleach on the stained floor to try to get the stains out. I'm not sure that will work with the stain on the floor. I'm thinking that it will just lighten the stain, but the discoloration will still be there.

Could I get the floor back down to bare wood by re-sanding? If I do this, could I than use the floor bleach? What about chemical stripping?

Thanks for your advice!

Chris