Ok garmanma here goes.
The urin has soaked into the concrete of the floor. Most dont know it but concrete is permeable.
The problem with useing a commercial deoderizer is it will only get rid of the oder that it can reach. Thaty being about 1/16" to 1/8" if that. So spending a bunch of money will solve the problem.....Temporarily! If the home is recarpeted and put up for sale you have a very good possibility that the oders will return. This would be a very bad situation, as Im sure you know.
So, what can you do?
The first thing you need to do is get the deoderizer down into the concrete as far as possible. It took a long time for the urin to soak in and pretty much that is what you need first of all. Some time. 30 days is a good amount. Anything less and you take a chance. With disclosure requirements as they are today you could be in for a big legal bill if the oder returns after the sale of the home.
The deoderizing process is done over the pone month period by allowing the solution to soak into the concrete. Use a mixture of hydrogen peroxide and baking soda at a 90:1 ratio. You can get hydrogen peroxide for a buck a bottle at most dollar stores. Mix this up and pour it over the affected areas. Allow it to dry/soak in. Repeat this daily for at minimum 4 days. Sweep or vacuum up any residue before applying the next treartment. After that use a mixture of vinager and water at 1:4 respectivly. Do this daily for at least a week. Then use a mixture of 1 box baking soda to 1 gallon of water for the last week. Sweep up or vacuum any residue before applying the next treatment.
If you think there is a chance that the oder may still reoccure, you can apply a coat of two part epoxy based concrete paint. Just be sure that you add the catalyst before you paint the floor. I had a friend that didnt. He spent the next couple weeks with a lot of rags, and acetone cleaning it off.
If you decide against the paint sprinkle a good layer of baking soda over the concrete before you lay the carpet just in case.
Over time the oders will dissapate on their own. Im talking at least a few years for that to happen though.
This is the method that I employed to a two story home near where I live. The owners had about 10 mixed breed wolves and other animals living there. Four of the wolves and the other assorted animals had the run of the house. They included: a raccoon (totally cool pet!), three smaller dogs (one of which died behind an old style iron bath tub), at least 5 cats (one lived in the HVAC ducts. Had to trap him!), a pigmy goat, two parrots, and countless rodents.
We had to use chemical masks to be able to stand the stench. We at first called in a professional company to solve the problem. After three trips back they gave up and refunded the $3k that was paid to them.
It took 3 months of treating the place daily, but it worked. The house is still oder free. I last visited there about four months ago. You would never believe how horrible that place smelled if you went in there today.
Hope this helps.
Edited by wbsbadboy, 03 October 2009 - 12:42 AM.
I provide two types of good, sound advice.
Advice to those who ask for it, and advice to those who need it.