If the air vent hose to the tank isn't completely open it will take forever! Try taking the fill cap off when draining and see if it makes a difference.
Hello everyone, I have the Vegas 25.2 and I have noticed that the fresh water drain is drip at best. I have run the pump to pump out the water. Not real happy with doing that. I have to try opening up the fresh water fill while draining. Thanks SuperD.