A. Crystal cat litter may be popular with humans, but the cat may disagree. Sometimes cats find the crystal particles irritating. The crystals eventually reach their limit of absorbency, and urine ...

Urine naturally contains minerals that can clump up and form tiny crystals, and even large stones, in your cat's bladder. They can irritate the lining of the bladder or urethra and cause bloody ...

I also bought an expensive product called “dumb cat” that is supposed to neutralize the urine crystals and keep the cat away. I think this helped with the cat, but I can’t shake the old smells.