Called out today due to the dish washer filling up with water when no in use Upon further inspection found the kitchen drain line to be back falling to the disposal and would let water back fall to the disposal and the would fill the dishwasher Gave customer price to rework the drain line for the kitchen sink Customer accepted the price Disassembled the old drain and reran drain so that it would flow in the proper direction Tested for lease There are no leaks at this time Job is compleat