Help!!!

I have a 12 year old spayed female and a 9 month old neutered male. They have NEVER gotten along. Misty(the female) was an only child till I brought home Sam last summer. There seems to be a constant territory struggle between them. as bad as the hissing and spitting and attacking eachother is though, that is the least of my worries right now. Sam has been peeing (spraying?? haven't seen him do it so I am not sure which) in the crawl space under our house. If I can't fix this problem like NOW the cats and I will be out of a place to live (I refuse to just get rid of them so I will be going too). Under the house is all gravel and sand. Almost like beach sand and I don't even know where to start with ordor removal. My dad was in the crawl space a couple days ago removing some of the gravel for other use around the yard and since then the smell is HORRIBLE. We know Sam was under there that night after the gravel was removed because the spot in the rafters where he was getting in had been blocked by my dad that day and the next morning the space was cleared again. We looked under the house and there were MANY wet spots it is actually unbelieveable to me that a cat could pee that much in just one night. Anyway I am rambling. The point is that I don't want to move out and I have no idea where to start with the odour removal. So far this seems to be the only place he is misbehaving in this way.

Your cat is not misbehaving, he is acting purely on instinct. I would take him to the vet to be sure he isn't ill first off-

Then www.urine-off.com will help you with your other problem.