"The Drinkwell itself is a great product, and with two cats I decided to buy the reservoir. I thought maybe, like most plastic type stuff and the rest of the Drinkwell system, it would be dishwasher safe, but it melted. If you get it, I would recommend hand washing if you want it to stay usable for a long while. A lack of dishwasher safety would be my only complaint here. Otherwise, this thing is fantastic."