I had been concerned about Jingles(my cat), she has been upchucking and seems dehydrated,(possibly the cause) I had been looking at this product for a while, so I decided to buy one. She likes to drink out of the toilet once I flush it, and it kinda gives the illusion. It has a filter that filters out the bacteria. I hope this works, does anyone else have one, and what are your opnions??