In the supermarket to buy back the flower nail is definitely still need to spit sand, because in the supermarket in the flower nail supermarket will not help you to spit sand complete flower nail. Also will not help you to clean the flower armor, so in the supermarket to buy the flower armor words, and you buy outside the nature of the flower armor is the same. It's all about spitting. Of course, it is also very simple, put into the basin with some water and salt water, the flower armor will be spit out of the sand.