Ultra-quiet water pump: Pet fountain water pump with low-noise submersible pump, barely audible water flow, long-term quiet operation, and low energy consumption. Automatic shutdown when water runs out: Newly updated DC pump can automatically shut off when water runs out, only 1.5 degrees Celsius will be consumed if used continuously for 1 month. Safe and practical: Antibacterial PP resin, making it BPA-free, non-toxic, and tasteless. Cleaning the electric water pump every 2 weeks is essential for the longevity of the fountain. First, remove the pump cover. Second, remove the impeller cap by placing your fingernail under the small edge. Third, remove the impeller and clean the parts with warm soapy water. Scope of application: The water fountain pump is specially designed for the 2.4L USB LED cat water fountain, suitable for bird bath, aquarium, pond, oxygen cycle, rockery, garden irrigation, fountain, etc.