First, avoid the use of extension cords . Second, the use of socket or lines need to have leakage protection. Third, only applies to water work. Not be used in the absence of water . Fourth, the need for regular cleaning and taking into account the axis of the internal water box , consider water sediments cotton miscellaneous dirt . Fifth, after cleaning the installation , verify that the water leaves the axis of the junction has been tightened. Seven, when the need to see if the wires are damaged , if damaged , please do not use. This product uses a unique design of the motor and pump body structure, it has charateristics such as lower power consumption, longer life. Widely used in farming ( lawn and garden), tour vehicles, special vehicle, ship, beverage, vehicle cleaning, carpet cleaning, ground cleaning, water purification and water treatment equipment.