I've noticed Walter's been using the litter box a LOT lately. I have the automatic box, so I hear it sweep every time he uses it. I must have heard the thing run 10 times last night from the time I got home until the time I went to bed. My other cat, Harold, was on heart medication that made him pee a lot, and it almost seems like Walter goes almost as much as Harold did. I've scheduled him for a urinalysis tomorrow morning, but I'm curious, how often do your cats go pee? Come to think of it, I've had to refill his water fountain a little more frequently lately, too. Until now, I just thought it was evaporating because its been so hot out. He's also been eating more than normal. Otherwise he's the same energetic, hyperactive goofball...Any thoughts? Thanks!