vivosun commercial air pump 950gph, 32w, 60l/min 6 outlet for aquarium and hydroponic systems vivosun <b>safety suggestions:</b> <br>ensure that the power source conforms to the power requirements specified on the product; use a standard ac outlet. <br>this appliance should be grounded properly while in use to protect the operator from electric shock. <br>do not carry the appliance by the power cord; carry it using the carrying handle. <br>do not place heavy items on top of it, and do not use the appliance if the cable or plug is damaged. <br>in order to avoid the water flowing back, the appliance must be installed above the water level of the system it is paired with, <br>or a check valve must be installed on the outlet hose. <br>clean the filter sponge every two months in order to ensure the air is clean. <br>the unit is not designed to be lubricated by oil; do not add any oil lubricant. <br>unplug the appliance when cleaning it. wipe the unit with a soft cloth lightly dampened with soapy water. do not wipe the <br>plastic parts with solvent. <br>install the unit handle facing up on a flat plane; remove other items from contact with it. <br>please keep the unit away from high-temperature environments. direct sunlight, moisture and dust. <br>unplug if the appliance will not be used for a long time. <br>never attempt to repair nor reassemble the appliance; ask a qualified technician to check and repair your unit.