Removing Water Stains From Hardwood Floors. An excessive amount of bleach can ruin your floor so you should proceed cautiously. Water stains leave disgusting white rings or lines on hardwood flooring and furniture.
Soak a piece of cloth in hydrogen peroxide and place over the stain overnight or at least 8 hours during the day. Apply white toothpaste not gel to a rag. Apply a small amount of toothpaste to the stain and buff gently with a soft cotton cloth.
Gently scrub the affected area not too hard.
This should remove some of. Bleach is one of the most common stain removal products for removing dark stains from wood floors. Gently scrub the affected area not too hard. Removing black water stain from the hardwood floor can use toothpaste.