Originally posted by Kristl
wow! $10!! that's a steal...mine was $19.99, but still not too terribly expensive!
Ooh! Ooh! I must be the winner! I paid $30.00 for mine. It was a Christmas present to the cats.

I have a question about it, though. Mine makes a gurgle sound when the water gets low and doesn't seem to hold much water anymore. It worked fine when we got it. We changed the filter; are we doing something wrong?