Congratulations on your new home appliance. We have the smaller version - it looks, anyway, as if yours is the larger version. We have only two cats. My husb. calls it the cat's toilet, because he claims it looks like a - um - urinal. Anyhow, the cats like it. Warning - make sure it stays topped up properly, not only because if it runs down it is hard on the pump, but because when it runs down, it is inevitably in the middle of the night, and it makes a horrific sound that rattles the entire house! Enjoy.