So a buddy gave me a gun recently and I have a few questions. Number 1- it doesn't have any "bands" on it. Where can I get some on line? It's a Voit aprox. 24" in length. Number 2- can you shoot this thing out of the water? I've got some carp in the pond that need to come out. Number 3- how do you maintain these things or know if parts are beyond their recommended lifespan?