Michelle, forgive the days delay in getting back to you. No, I havn't thought of taking Snow Cat to a vet for this problem. I changed my firkid's litter arrangement yesterday. Formerly, I used sand, but since I am going away for a couple of weeks, I though that it would be best to install a litter system that is more practical, for my pet sitters to clean up , and didn't take so much time and energy to maintain. However, I am glad that I bought the litter material, because I can see that it is a definite improvement over sand. Now I'm watching how well they all adapt to the commerical litter, especially Snow Cat. So far, I have seen that they like to dig in the litter, more so than in sand. I'll have to wait and see what happens, and check any piles of clothes or boxes of rags to see if they have "kitty tinkle" on them

........wayne