<strong>Yahoo Message Number: 77634</strong>I have a 2009 Magna 630 and this morning develped a problem with my Black Tank Electric Sewer Gate Value. When I trip the switch the gate value will not open how I hear the motor running continuously.<br/><br/>Has anyone had this problem and suggestions on repair. <br/>My Black Tank is about 1/2 full and wonder if I will need a Vac Truck to empty the sewer...