How do you get water stains out of hardwood floors?
How do you get water stains out of hardwood floors? To remove dark water stains from wood floors, you have two options: Dip a small brush (such as a toothbrush) into a small amount of bleach and rub onto the stain. Do a second round after several hours and let the area rest until the next day. Alternatively, you can strip, sand, and reseal the area if possible.