Spunky has pee issues, but his are behavioral. He knows I have to clean it up so it does it purposefully, mostly when I'm watching. This is his way of expressing his disappointment with me when I'm late or if I ignore him.

What he does is stand up in the litter box and pee straight back. I solved the situation by putting boxes close together and white board against the wall and leaning on the boxes so the pee ends back up in the boxes. I also put a cheap area rug underneath the boxes and some plastic runners.

For sprays I use OUT which neutralizes the odor fairly well.

I also do not let it freak me out. I rent too and don't wish to be in trouble with the landlord. I figure Spunky can sense my disgust so I'm trying reverse psychology on him.

I think the other suggestions are excellent also, esp if it's a multiple or multi-cat issue.

Good luck and I do understand.