Hydrogen peroxide is also suitable for removing the dark stains and the lingering smell on hardwood floors.
How to get a black stain out of hardwood floor.
Repeat for longer hours if the stain is resistant.
Another option is to combine vinegar with baking soda to make 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 cloth in vinegar and apply the vinegar to the stain.
For very severe stains sanding won t even get them out.
Use a soft cloth to wipe the paste and luckily the stain will disappear.
Take 150 grit sandpaper and sand the stain directly again along the grain of the wood.
Continue sanding until you remove the whole stain.
Since urine is acidic it literally burns the tannins in the wood.
Dip a small brush such as a toothbrush into a small amount of bleach and rub onto the stain.
Make your own hardwood floor cleaning solution by mixing a cup of white vinegar into a bucket of warm water.
It should help get rid of a black stain on your floor.
The most troublesome hardwood floor stains are those that affect the wood itself.
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.
One idea is you may sprinkle a generous amount of baking soda on the urine stain.
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.
Adding grapefruit oil to the mix can help with the odor even more.
In order to create the solution you have to make a mixture of one part bleach and four parts water.
Apply the paste on the stained areas and let it dry completely.
Allow the mineral spirits to dry.
They are usually the result of standing water and are most likely to occur when the finish has worn thin.
Sand away the stain with 150 grit sandpaper.
Switch to a finer sandpaper once you reach the bare wood.
Use this solution to scrub at the stains.
To remove dark water stains from wood floors you have two options.
Oxalic acid is the best to treat stubborn aged stains discolorations like black water and rust stains from your hardwood floor.
Get a soft or microfiber cloth to wipe the paste.
The result should then be sprayed and wiped onto the exposed surface of the floor.
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.