How to Remove Dark Water Stains from Wood

You try to be careful. You put coasters on all the wood tables and ban your kids from taking their drinks out of the kitchen.

But, the inevitable happens – despite your good intentions, someone has an accident. Now you’re wondering how to remove dark water stains from wood.

What’s the Best Way to Remove Dark Water Stains from Wood?

Popular home remedies for removing dark water stains from wood include using toothpaste, mayonnaise, petroleum jelly, or hydrogen peroxide. If you don’t like the idea of using home remedies, you can purchase watermark remover cloths or wood floor stain remover from your local home improvement store.

7 Ways to Remove Dark Water Stains from Wood

Let’s lay some ground rules before you use ANY of these methods. First, always do a test patch in an inconspicuous area to see how your wood reacts with the products you’re using. 

Secondly, if you catch a dark water spot while it’s still fresh, you may be able to prevent it from settling in.

1. WaterMark Remover Cloth

Watermark remover cloths are formulated specifically for removing water rings from wood and can be found at most home improvement stores.

One popular choice is the Guardsman Water Mark Remover Cloth. This cloth can be reused and can remove hard water rings, latex paint, and more. This cloth claims to restore wood without stripping it.

2. White Toothpaste

White (non-gel) toothpaste can help lift dark water stains off of your furniture and wood floors. Simply rub the toothpaste all around the watermark with a dry cloth. After you’ve rubbed for a bit, use a wet cloth to remove the toothpaste.

3. Mayonnaise

An old wive’s tale to rid dark water stains off wood is mayonnaise. While this method might not smell the best, it can make your wood look better.

Here’s what to do:

Generously apply mayonnaise to the dark water spot on your wood. Allow to sit for one hour and then wipe up. 

The theory is that the oil in the mayonnaise will seep into the floors and displace the water, removing the stains.

4. Use Hydrogen Peroxide

Hydrogen peroxide is one of the best tools for treating dark stains on hardwood floors. Here’s how to use it:

• Wet a rag with hydrogen peroxide.
• Dab onto all the dark water stains.
• Allow to air dry.
• Repeat if needed.

5. Sand and Stain (For Unsealed Wood)

For unsealed wood, you can sand the dark water stains out and then restain the area you sanded. I would try the other methods first, though, as they might be easier to implement.

6. Hardwood Floor Cleaner

If your stains result from pet urine or feces, using a hardwood floor cleaner specially formulated for pet messes may do the trick.

Two popular hardwood floor cleaners for removing urine stains are:

• Rocco and Roxie Stain and Odor Eliminator
• Nature’s Miracle Hardwood Floor Cleaner

7. Petroleum Jelly

Petroleum jelly works on the same premise as mayonnaise – it displaces the moisture causing the stain. To use this method, rub petroleum jelly over the watermark and allow it to sit for a few hours up to overnight. Wipe away with a clean cloth the following day.

Frequently Asked Questions

What causes black stains on wood?

An excess of moisture causes black stains on wood. This is why you see a ring when you leave a cold cup on a wooden table for too long.

The best way to avoid black stains on your wood furniture and flooring is to use coasters for drinks and clean up spills and pet messes promptly.

How do you remove black water stains from unfinished wood?

To remove black water stains from unfinished wood, all you need to do is give the dark spots a light sanding. You can do this with a piece of sandpaper or a sanding block. 

How do I remove dark water stains from wood floors?

The best way to remove dark water stains from wood floors is to dab hydrogen peroxide on the dark spots and let them dry overnight. You may have to do this several times to achieve your desired results.

You can also try the other methods on this list. Just be sure to spot test first.

If none of these methods remove the dark water stains, you may need to have your floors refinished to get the spots out.

Final Thoughts on Removing Dark Water Stains from Wood

If you’ve got dark water spots in your wood, you’re in luck. There are plenty of remedies that will treat and remove the stains. Just be sure to do a quick spot test before treating any large areas. 

With some experimentation and a little bit of elbow grease, you’ll be able to restore your wood to new.