How can I repair a large water stain on a hardwood floor?

https://www.youtube.com/watch?v=djjUMO6TR2E

Hi Donna, sorry you have a large stain on your hardwod floor. I hope this helps you fix the problem. How do you fix water damaged wood floors?

How to Repair a Water-Damaged Hardwood Floor

1. Mask off the surrounding boards with painter's masking tape. ...
2. Mix oxalic acid crystals (available at paint or hardware stores) in 1 cup (8 fl oz/250 ml) or so of hot water and stir to dissolve them. ...
3. Pour, brush or sponge the solution on the stained area.

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How to Repair a Water-Damaged Hardwood Floor | Hunker

https://www.hunker.com › how-to-repair-a-water-damaged-hardwood-floor

Hi Donna. My name is Cindy. I recommend making a paste with salt and olive oil. Put it directly on the water stains. Let it sit at least an hour. Then come back and wipe it all up with a damp cloth. The salt will pull out any moisture and the olive oil will condition the wood. Repeat if needed.

It really all depends on the existing finish. If it was a refinished from factory floor you won't be able to match it. If it was finished on job it can be more easily matched. I'd call in a pro. Too easy to mess it up if you've never refinished anything.