??Material??-The electric borehole water pump is made of ABS and alloy. Has high hardness and good sealing. Please wipe with lubricating oil before each use and rinse with clean water after use. When pumping abrasives and liquids containing solids, it is necessary to add a filter to the inlet line to achieve longer life. [High Performance] -The range fuel pump operating temperature is 5 to 49 degrees. The flow rate of the oil pump at 1500 rpm is 15 L per minute, and the flow rate of the oil pump at 3000 rpm is 30 L per minute. Note: The recommended speed is between 1500 and 3500. Before use, make sure that the pipe at the inlet of the oil pump connector is sealed, and the length of the pipe should not exceed 2.75 meters (9 feet). [How to use] -Our product is driven by an electric drill. After starting, check whether a certain fluid in the water inlet pipe is sucked into the pump within 15 at 20 seconds. If not, you need to check if the oil inlet pipe is properly installed on the oil inlet pump. Note: Do not let the pump dry out If the pump does not start, check to see if the hose is kinked or blocked. Do not operate the pump in reverse ??Portable??-The pump body is small in size, compact in appearance, light in weight and easy to carry. You can easily carry it to your desired workplace, then set it up and start using it, saving your working time. It is better to install a sealing ring at the interface to ensure leakage during use. Check whether it is installed correctly before use and whether the air in the oil pump has been emptied. ??Widely Applicable??-The oil pump can also be used as a water pump. It is also suitable for swimming pools, aquariums, fountains, and can also be widely used for household cleaning.