just a heads up, if the frag does come loose, it helps to take it out of the water and dry it a little with some paper towel. the glue wil stick better this way. and on the caps, blue the back of the cap, and be sure to dab some glue on the bottom as well. then apply pressure back and down at the same time. should stick right away, just be careful to not apply to much pressure, or you'll end up fragging it again.