I had mine emptied several years ago by one of the quacks, dr Elariny, that dr pinnar left his patients with. I had an ulcer so it was temporary for healing purposes. I haven't Been able to find the "sweet" spot for my fill since and have gained weight and am very frustrated.
WouLd. not recommend emptying if you can avoid it. Also, keep in mind the band is a life style change, and a surgical fix not an on and off switch. ReThink risking your success for special occasion eating.
Good luck!