Put the water fountain bowl in the dishwasher!
One of the biggest complaints on those water fountain bowls is what a pain they are to clean- I know it's been said on this forum more than once. We have a petmate and I've never though it was too bad to clean- 10 minutes with a big soft bottle brush, though I've never been able to effectively clean the reservoir without soaking it in a mild bleach solution.
Yesterday I decided to take a chance and put all the parts in the dishwasher (without the pump, of course). Worked great! The clear plastic reservoir looks like it might have clouded slightly, but I'm more interested in cleanliness and function. I don't know why I hadn't thought to try this earlier.
I don't know about other brands structures, but this one sure cleans up well this way, and while the cats were without their precious fountain for about 2 hours, it took all of about 30 seconds to take apart, put in the dishwasher, and clean the pump. I will never clean this thing by hand again.