The optional attachment creates four streams, but this attachment can be removed for a quiet flow. The Butterfly Fountain has no hard-to-reach spots, so it's easy to clean with, for example, the PetSafe Drinkwell Cleaning Kit (022 0319). The drinking fountain is equipped with a replaceable foam filter that collects dirt and hair. Features PetSafe Drinkwell drinkfontein Butterfly: Water capacity of 1.5 liters. Larger currents ensure that the larger sea will drink.