When I first set up my REO I put Unicorns blood in the bottle and after I finished it I decided to change flavors so I washed out the bottle with some water and also the plastic tube and blew out excess juice from the tube out to the threading. I put in another flavor and changed flavors one more time after that but the taste of Unicorns Blood is still lingering. How do I get rid of it? I've also rewicked and washed the RM2 I'm using.