Is a great watering hole for cats. It has 3 modes to adjust the flow force even if the lowest is still too strong in my opinion (you can not adjust it to have a thin edge of water or drip only. It has a small internal pump that allows the recirculation of water (capacity about 1/1,5 liters); It is not noisy is a continuous rustling like the fridge engine or an old neon. I have not yet estimated consumption at 24h lit terlnerlo. Important is not to leave the pan without water otherwise the scooter will burn.