6W Ultra Quiet Submersible Water Fountain Pump, Aquarium Filter Precautions: 1. The water pump is a DC water pump, and the voltage must be DC power supply (such as battery, DC power supply marked with DC, transformer), and the voltage can be used within the specified voltage range. 2. It is strictly forbidden to dry for a long time without water 3. It is strictly prohibited to use in acidic and alkaline solutions. 4. It is strictly prohibited to use impurities and magnetically permeable particles larger than 0.35MM in the liquid. If the water quality is too dirty, it is necessary to clean the impurities in the pump chamber in time.
