Urine Off

I already had a tenant who had a dog obviouslt disgusting it didn't clean up after and I can not get this yellow urine corrosion on the floor

It depends on the quality hardwoods, first - is it a good thickness? [On the top of my head, I think it's 1 / 2 "] If the thickness of high quality, you may be able to sand down (shallow timber would be much more risky sand ). But better yet, do you have replacement tips for putting in there?

However, if it is only "easy to" things, then it can not be sanded at all.

You have to obtain valuations of the local population - and, of course, there are risks to this. Ask for references neighbors - but this is not always reliable either. Get more than one opinion.

But start with local stores, just ask questions - take a picture of the damage on the ground. Even if they are limited in what they can tell you from a single photo, if you listen closely, you'll start gathering information - and above all trust.

You sand. There are a ton of different chemicals that work, but they all contain heavy metals that could cause staining.

If you can smell the sand down and make alterations, dry what you have with acetone (hardware it doesn't have any color) and can be reached at the spot with a new coat of oil-based product wood finish (try the best applications for hand mixing)

But if its simon and deeply into the wood you may have to replace it. Depends on the severity of the finish was.

I had several, I tried all the approaches, all the work, sometimes a light finish sanding it, sometimes saw, and sometimes a carpet.

You'll have to finish and even that does not always work.