1.Do not mix the positive(+) and negative(-) connection.
2.Do not operate long time while there is no water in the pump.
3.The pump is submersible which means it must be full submerged in the water.
4.Copper wire required.(6mm2 or 10mm2 copper wire is required if the cable length is more than 40m)
PS: As for the pump cable, we have two different kinds of cable colour, one is black color and anonther is yellow color. and the cable color is at random when we deliver. So maybe you will received the pump with black color cable. or you will received the pump with yellow color cable. Hope you can understand.