when the month is up, all you need to do is just to pull out the tray and replace it with a new one. we are not saying be blind sheep but do have a little faith in the process. in the factory store/gift shop, they had a long counter of seconds. does filing taxes tax your brain as well as your wallet? that's all what's left of the old ship building yard, the name. he has built all kinds of things over his lifetime. 