Let the vinegar sit.
How to get a black stain out of hardwood floor.
To remove dark water stains from wood floors you have two options.
Apply the paste on the stained areas and let it dry completely.
Repeat for longer hours if the stain is resistant.
It should help get rid of a black stain on your floor.
Switch to a finer sandpaper once you reach the bare wood.
Since urine is acidic it literally burns the tannins in the wood.
Black rings or dark water marks can be more problematic as these are generally water stains that have penetrated into the finish of the floor.
For very severe stains sanding won t even get them out.
It is best to avoid getting these types of stains as they are difficult to remove but if you already have black urine stains on your wood floors you can attempt to remove them without refinishing the whole area of the floor.
Continue sanding until you remove the whole stain.
One idea is you may sprinkle a generous amount of baking soda on the urine stain.
Another option is to combine vinegar with baking soda to make a paste.
Dip a small brush such as a toothbrush into a small amount of bleach and rub onto the stain.
Get a soft or microfiber cloth to wipe the paste.
Use a soft cloth to wipe the paste and luckily the stain will disappear.
Adding grapefruit oil to the mix can help with the odor even more.
Allow the mineral spirits to dry.
Sand away the stain with 150 grit sandpaper.
Use this solution to scrub at the stains.
Take 150 grit sandpaper and sand the stain directly again along the grain of the wood.
The most troublesome hardwood floor stains are those that affect the wood itself.
Make your own hardwood floor cleaning solution by mixing a cup of white vinegar into a bucket of warm water.
Soak a steel wool pad with mineral spirits and rub the stained area with the pad.
Mix the vinegar with baking soda to form a paste.
Bleach might have been used to remove the stains from your white clothing but it can do a great job at removing hardwood floor stains as well.
Soak a piece of cloth in hydrogen peroxide and place over the stain overnight or at least 8 hours during the day.
Soak a cloth in vinegar and apply the vinegar to the stain.
In order to create the solution you have to make a mixture of one part bleach and four parts water.
The result should then be sprayed and wiped onto the exposed surface of the floor.
Oxalic acid is the best to treat stubborn aged stains discolorations like black water and rust stains from your hardwood floor.