Did the newspapers first thing when I got the kitty. No leaks. I put water in the pan to test it first thing too. I have had lots of kitties in my life. BUT no kitty that has used a pan in about 6 years. I thought that they had changed the formula for litter.

Altho I he is only one cat I am using Tidy Cat for multiple cats but it is the NON-clumping type. Maybe the clumping kind would be better.

That's what I use!

LOL I thought I was silly when I used Febreze on the kitty box.

We use Tidy Cats clumping for multiples. We have three cats. As long as they are sifted daily odors are kept to a minimum.

Thanks all. Looks like most use about the same kinds of litter. I will try some of the other ones, especially the clumping kind, and see if it helps. I scoop the poop almost as soon as he goes so if anything is smelling besides the litter, it is the pee. I notice the smell even after I have completely changed the box but not nearly as bad, which is why I think it is the litter. Then again, I have also noticed my sinuses being more stuffed up using litter. Maybe I am more sensitive now, and I am smelling it because of that.

Thanks you guys are awesome.

When I had my daughter's cat here I used Feline Pine. It smells just like pine shavings. I use a little bit of litter in the box and instead of scooping every day, just toss it with the liner and replace it. You couldn't even tell there was a cat in the house. She still uses it in her apartment and it smells great.

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Thanks for the info. I'll go get some today. I have two inside cats and while I can't smell much, the female won't go in hers after 3 days (even if the mess removed) unless she is in dire need of it. I keep 3 large plastic dog food containers for their boxes, with big foil turkey or commercial food containers with the litter in them so I can take it out and put new ones in while sterilizing the older ones outdoors in the sun. These large 60 pound or so containers are good laid on their sides with the front elevated so the litter doesn't get kicked out. (They are rotated outside for sun sterilizing). The male always stands and sprays, which nearly ruined my floor before I found out what he was doing. And yes, he is fixed, as soon as I found him as a kitten.

The clumping is the only one I find controls the odor. My cats have never shown any inclination to eat it, tho the dog has. I keep a kiddie gate across the door to keep the dog out.
Just a word about the covered litter boxes; I got one and soon discovered my cat peeing on my bed and pooping on the floor. Took me forever to make the connection, but once I did, I tried putting her in the covered box and saw that she was absolutely NOT going to go in there. Once I removed the lid, she immediately started using it again and hasn't gone on my bed one time since.

Litter has a lot of dust to it, which could be affecting your sinuses. You might try wearing a paper mask when changing and cleaning the litter. Also, using a low dust or dust free litter might help. hugs and smiles and good luck.

I am convinced that it has little to do with the litter. We had a cat that died a while back (he was 20) and he could run us out of the house in a min sometimes. He got sick and got diarreha. After months of medicines and changing vets we found out that he had irritable bowl. The vet had us change his food to Organix for sensitive stomachs. (no longer made) and he was out of quarentine in days AND his eliminations no longer smelled near as bad. (maybe 10% of what it had been for years) Now with our new cats we feed only higer quality foods like Organix and they too do not have near the smell of some cats. These two can eat anything where Boo couldn't eat anything. So try to change the diet to see if that make a diffrence.