I have found several helpful suggestions in these postings that I will try for getting rid of the pet urine that was on my carpet and soaked through to the cement slab. Smells terrible even with the carpet removed and clorox wash. I live in Florida so the humidity is helping to keep the smell in the air.I plan to lay cermanic tile over this area. Are there sealers that I should be avoiding? Or something special that I should be doing? I don't want to go through the work/expense of laying tile, just to smell dog piss again.